how many conduction electrons are there in a 5.00 mm m m diameter gold wire that is 20.0 cm c m long?
Answers
There are around 2.31 x 10^17 conduction electrons in a 5.00 mm diameter gold wire that is 20.0 cm long.
The basic idea behind this answer is to use the relation between the cross-sectional area of a wire and its volume as well as the number of electrons per unit volume to determine the number of electrons in the wire.
Use the formula for the cross-sectional area of a circle, A = πr^2, where r is the radius of the wire (which is half of its diameter).If the diameter of the wire is 5.00 mm, then its radius is 2.50 mm or 0.00250 m.
Therefore, the cross-sectional area of the wire is:A = πr^2 = π(0.00250 m)^2 = 1.96 x 10^-5 m^2Now that we have the cross-sectional area of the wire, we can use this to determine its volume (since we know the length of the wire).
The formula for the volume of a cylinder is V = Ah, where A is the cross-sectional area and h is the height (or length) of the cylinder.
Therefore, the volume of the gold wire is:V = Ah = (1.96 x 10^-5 m^2)(0.200 m) = 3.92 x 10^-6 m^3Now we need to find the number of conduction electrons per unit volume of gold.
The density of gold is 19.3 g/cm^3, which means that 1 cm^3 of gold has a mass of 19.3 g. The molar mass of gold is 196.97 g/mol, and there are 6.022 x 10^23 atoms in 1 mol of gold.
Therefore, the number of atoms per cm^3 of gold is:N = (6.022 x 10^23 atoms/mol)(19.3 g/cm^3)/(196.97 g/mol) = 5.90 x 10^22 atoms/cm^3Finally, we need to know how many electrons there are per gold atom.
The atomic number of gold is 79, which means that it has 79 electrons. However, only the valence electrons (which are in the outermost shell) are involved in conduction.
Gold has one valence electron, so each gold atom contributes one conduction electron. Therefore, the number of conduction electrons per cm^3 of gold is:Ne = N = 5.90 x 10^22 electrons/cm^3
Now we can calculate the total number of conduction electrons in the gold wire by multiplying the number of electrons per unit volume by the volume of the wire:
Ne(total) = NeV = (5.90 x 10^22 electrons/cm^3)(3.92 x 10^-6 m^3) = 2.31 x 10^17 electrons
We can convert this to the number of conduction electrons in the gold wire by using the fact that there are 6.022 x 10^23 electrons in 1 mol of electrons (i.e., the Avogadro constant):
Ne(total) = (2.31 x 10^17 electrons)(1 mol/6.022 x 10^23 electrons) = 3.84 x 10^-7 mol. There are around 3.84 x 10^-7 mol of conduction electrons in the gold wire.
Use the molar mass of gold (196.97 g/mol) and the density of gold (19.3 g/cm^3) to find the mass of the gold wire:M = Vρ = (3.92 x 10^-6 m^3)(19.3 g/cm^3) = 7.56 x 10^-5 g.
Use the formula for the number of moles of a substance to find the number of moles of gold in the wire:n = M/m = (7.56 x 10^-5 g)/(196.97 g/mol) = 3.84 x 10^-7 mol.
This is the same number of moles as the number of conduction electrons in the gold wire, so we can multiply this by the Avogadro constant to find the number of electrons:
Ne = nN_A = (3.84 x 10^-7 mol)(6.022 x 10^23 electrons/mol) = 2.31 x 10^17 electronsTherefore, there are around 2.31 x 10^17 conduction electrons in a 5.00 mm diameter gold wire that is 20.0 cm long.
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Related Questions
A woman rowing on a wide river wants the resultant (net) velocity of her boat to be 8 km/hr westward. If the current is moving 2 km/hr northeastward, what velocity vector should she maintain
Answers
The woman should maintain a rowing velocity of 2 km/hr eastward to achieve a resultant (net) velocity of 8 km/hr westward, considering the current velocity of 2 km/hr northeastward.
To determine the velocity vector that the woman should maintain while rowing, we can use vector addition.Let's assume that the woman's desired velocity (resultant velocity) is 8 km/hr westward, and the current is moving at 2 km/hr northeastward. We need to find the rowing velocity that will combine with the current to achieve the desired resultant velocity.To do this, we can treat the velocities as vectors and add them using vector addition. Since the desired resultant velocity is westward, we need to add the rowing velocity and the current velocity in such a way that their resultant points westward.We can break down the current velocity into its northward and eastward components. The northward component of the current is 2 km/hr, and the eastward component is also 2 km/hr.To achieve a resultant velocity pointing westward, the rowing velocity must cancel out the eastward component of the current. Therefore, the rowing velocity should be 2 km/hr eastward.Now, we can add the rowing velocity and the current velocity:
Rowing velocity (eastward) + Current velocity (northeastward) = Resultant velocity (westward)
2 km/hr (eastward) + 2 km/hr (northeastward) = 4 km/hr (westward)
Therefore, the woman should maintain a rowing velocity of 2 km/hr eastward to achieve a resultant (net) velocity of 8 km/hr westward, considering the current velocity of 2 km/hr northeastward.
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A very light small ball (with a speed of 5m/s) collides with a bowling ball that is at rest. The small ball bounces back, and the bowling ball moves very slowly. Which one, small ball or bowlling ball experiences the greater magnitude impulse during the collision
Answers
The bowling ball experiences the greater magnitude impulse during the collision since it is initially at rest and is given the momentum of the small ball which has a speed of 5m/s.
The impulse of the bowling ball can be calculated using the equation impulse = change in momentum = mvf - mvi, where m is the mass of the bowling ball, vf is its final velocity, and vi is its initial velocity.
Since the bowling ball is initially at rest (vi = 0), the impulse can be calculated as mvf = m(5m/s) = 5m^2/s. The impulse of the small ball can be calculated in the same way, giving an impulse of 5m^2/s. Therefore, the bowling ball experiences a greater magnitude impulse during the collision.
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Question 1 of 10
How much thermal energy is needed to melt 1.25 kg of water at its melting
point?
Use Q = mass x latent heat of fusion.
Properties of water
Property
Value
Melting point
0°C
Boiling point
100°C
Cliquid
4.18 kJ/(kg.°c)
Latent heat of fusion
333 kJ/kg
Latent heat of vaporization
2260 kJ/kg
Answers
The thermal energy needed to melt 1.25 kg of water at its melting point is 416.25 kJ.
What is the latent heat of fusion?The latent heat of fusion is the amount of thermal energy required to change the phase of a substance from a solid to a liquid state without a change in temperature.
When a substance is in a solid state, the molecules are packed closely together and are held in a rigid structure by intermolecular forces. As heat is added to the solid, the temperature of the substance increases until it reaches the melting point, which is the temperature at which the solid starts to change into a liquid.
At the melting point, the added thermal energy is used to break the intermolecular bonds that hold the molecules in the solid structure. The energy absorbed during this process causes the molecules to become less ordered and to move more freely, resulting in a liquid state. However, during the melting process, the temperature of the substance remains constant until all of the solid has melted.
The latent heat of fusion is a property of the substance and is defined as the amount of energy required per unit mass to change the phase from solid to liquid. It is usually measured in units of joules per kilogram (J/kg) or kilojoules per kilogram (kJ/kg).
The latent heat of fusion is an important concept in thermodynamics and is used in many applications, such as the melting of ice, the solidification of molten metals, and the formation of igneous rocks.
Here in the Question,
To calculate the thermal energy needed to melt 1.25 kg of water at its melting point, we can use the formula:
Q = mass x latent heat of fusion
where Q is the thermal energy required, and the latent heat of fusion is the amount of energy required to change the phase of a substance from solid to liquid without changing its temperature.
Substituting the given values, we get:
Q = 1.25 kg x 333 kJ/kg
Q = 416.25 kJ
Therefore, 1.25 kilogram of water requires 416.25 kJ of thermal energy to melt at its melting point.
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find weight of 45 kg at height 800 km from earth's surface?
Answers
Answer:
The weight is 348.4 N
Explanation:
Effect of the Altitude on the Acceleration of Gravity
The effect of gravity decreases with altitude because greater altitudes mean greater distances from the Earth's center.
The practical formula to calculate the gravity as a function of the altitude h is:
\({\displaystyle g_{h}=g_{0}\left({\frac {R_{\mathrm {e} }}{R_{\mathrm {e} }+h}}\right)^{2}}\)
Where go is the conventional gravitational acceleration = \(9.80665\ m/s^2\)
R is the Earth's mean radius at the equator = 6,378 Km
h is the altitude.
At a height of h=800 Km, the acceleration of gravity is:
\({\displaystyle g_{h}=9.80665 m/s^2\left(\frac {6,378 Km }{6,378 Km+800Km}}\right)^{2}}\)
Calculating:
\(g_h=7.74\ m/s^2\)
The weight is the product of the acceleration of gravity by the mass of the object, thus:
\(W=45\ Kg\cdot 7.74\ m/s^2=348.4\ N\)
The weight is 348.4 N
Is kinetic energy conserved in an inelastic collision.
Answers
if a runner travels 250 meters north in 50 seconds, the what is his average velocity?
Answers
Answer:
5 m/s north
Explanation:
Average velocity is total displacement over total time. Displacement means change in position or a distance between initial position to final position.
In mathematically, average velocity can be expressed as:
\(\displaystyle{\vec{v}_\sf{average}} = \dfrac{\sum \vec{s}}{\sum t}}\)
Where \(\displaystyle{\vec v}\) is velocity, \(\displaystyle{\vec s}\) is displacement and \(\displaystyle{t}\) is time. You may notice the sigma notation \(\displaystyle{\sum}\), that denotes the sum of displacement and time (total displacement and total time).
A runner travels 250 meters north 50 seconds. Therefore, we know that the displacement changes from origin position (0 meter) to 250 meters up the north. Therefore, the displacement is 250 meters north and time is 50 seconds.
Therefore, substitute in the formula:
\(\displaystyle{\vec{v}_\sf{average}} = \dfrac{250}{50}}\\\\\displaystyle{\vec{v}_\sf{average}} = 5 \ \, \sf{m/s \ \, north}}\)
Therefore, the average velocity is 5 m/s north.
Is anyone interested in a pile of bricks, it's free on craigslist?
Answers
The interest in a pile of free bricks on Craigslist varies based on the needs and preferences of individuals in the local area, and posting clear details about the quantity, condition, and pickup arrangements can attract potentially interested parties.
Craigslist is an online classified advertising platform where users can post and find a wide range of listings for various goods, services, housing, jobs, and more. It operates on a local level, allowing individuals to connect within their specific geographic regions.
Interest in a pile of bricks on Craigslist would depend on the specific needs and preferences of individuals in the local area. While some people may find value in acquiring free bricks for construction or DIY projects, others may not have any use for them. It is difficult to predict the level of interest without knowing the specific context, location, and local demand for such materials. Posting the offer on Craigslist and providing clear details about the quantity, condition, and pickup arrangements can help attract potentially interested parties.
Therefore, Interest in a free pile of bricks on Craigslist depends on local individuals' needs and preferences, and posting clear details can attract potentially interested parties.
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the total charge on each plate and the separation between the plated is held constant while the area of each plate is doubled. what happens to the electric field between the plates, the potential difference across the plates, ad the stored energy in the capacitor
Answers
When the area of each plate is doubled while keeping the charge and separation constant, the electric field decreases, the potential difference remains the same, and the stored energy in the capacitor increases four times.
When the area of each plate of a capacitor is doubled while keeping the total charge on each plate and the separation between the plates constant, the following changes occur:
1. Electric Field: The electric field between the plates decreases. The electric field (E) between the plates of a capacitor is inversely proportional to the area (A) of the plates. As the area is doubled, the electric field is halved, assuming the other factors remain constant.
2. Potential Difference: The potential difference (V) across the plates remains the same. The potential difference across the plates of a capacitor depends on the charge (Q) and the capacitance (C), which is determined by the geometric and material properties of the capacitor. Since the total charge and separation between the plates are held constant, the potential difference remains unchanged.
3. Stored Energy: The stored energy in the capacitor increases four times. The energy stored in a capacitor (U) is directly proportional to the area of the plates (A). When the area is doubled, the stored energy is quadrupled (increases by a factor of four).
Therefore, when the area of each plate is doubled while keeping the charge and separation constant, the electric field decreases, the potential difference remains the same, and the stored energy in the capacitor increases four times.
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what is measurement?
Answers
Answer:
How long or wide something is
Explanation:
The interference between the two wave pulses shown above will
result in a wave with an amplitude of
Select one
Answers
Answer:
can you make it clear i do not understand.
Explanation:
blank is a measure of the percentage of water vapor in the air in a particular area
a. temperature
b. dew
c.point
d. relative humidity
Answers
Answer:
Relative humidity is a measure of the percentage of water vapor in the air in a particular area
Answer: relative humidity
Explanation:
What steps are always part of both the process of technological design and the process of scientific investigation?
Check all that apply.
building a prototype
conducting tests or trials
analyzing results
determining affordability and availability researching related information
Answers
Here, we are asked to identify steps which are common to both the process of technological design and the process of scientific investigation.
1. Researching related information
2. Determining affordability and availability.
3. Building a prototype.
4. Conducting tests or trials.
5. Analyzing results.
The list above is orderly.
The first iteration involves researching related information about the technological design or scientific investigation as the case may be. This is the first step after the idea-birth process.
The second iteration involves Determining the affordability and availability of the initiative. It is at this point that the process requires conducting a feasibility study.
Also, a prototype is needed because, a large scale effort cannot be wasted without first trying on a small scale and analyzing results obtained from the tests conducted.
Conducting tests or trials is next on the list as the prototype needs to be tested and the results analyzed accordingly.
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Answer:
Here, we are asked to identify steps which are common to both the process of technological design and the process of scientific investigation.
1. Researching related information
2. Determining affordability and availability.
3. Building a prototype.
4. Conducting tests or trials.
5. Analyzing results.
The list above is orderly.
The first iteration involves researching related information about the technological design or scientific investigation as the case may be. This is the first step after the idea-birth process.
The second iteration involves Determining the affordability and availability of the initiative. It is at this point that the process requires conducting a feasibility study.
Also, a prototype is needed because, a large scale effort cannot be wasted without first trying on a small scale and analyzing results obtained from the tests conducted.
Conducting tests or trials is next on the list as the prototype needs to be tested and the results analyzed accordingly.
Which statement best describes how scientists and engineers work together
in the research and development cycle?
A. Scientists develop a new technology, and then engineers test it by
doing experiments.
B. Engineers come up with scientific questions when they are
developing their design, and scientists do research to answer
them.
C. Scientists test designs made by engineers and then use the
results to improve the designs.
D. Engineers make a scientific discovery, and then scientists perform
research to verify it.
Answers
B. Engineers come up with scientific questions when they are
developing their design, and scientists do research to answer
them
Answer:
Yeah that's right
Explanation:
which is correct help asap
Answers
Answer:
b
Explanation:
. Why are the Jovian planets formed from materials different from the terrestrial planets?
a. Terrestrial planets were protected by the asteroid belt between Mars and Jupiter.
b. The composition of elements in a planet was a random process after the big bang.
c. When the solar system first formed, the heaviest elements sank toward the center of the nebulae and the lightest elements floated out.
d. Gaseous Jovian planets, formed farther away from the heat of the Sun, are formed from light weight nebulae "dust."
e. Only the terrestrial planets formed from planetesimals.
Answers
The Jovian planets are formed from materials different from the terrestrial planets for the reason that gaseous Jovian planets, formed farther away from the heat of the Sun, are formed from light weight nebulae "dust."
A Jovian planet, also known as a gas giant, is a huge planet that has a primarily gaseous composition. The Jovian planets include Jupiter, Saturn, Uranus, and Neptune. They are primarily made up of hydrogen and helium, and they have enormous atmospheres.Jovian planets are formed farther away from the heat of the Sun, so they are formed from lighter-weight nebulae "dust." Terrestrial planets, on the other hand, are formed nearer to the Sun, so they are formed from heavier-weight nebulae "dust." The density of the materials that make up the Jovian planets is lower than that of the terrestrial planets due to this. This means that the Jovian planets have lower densities and a greater volume than the terrestrial planets.
Hence, the correct option is d. Gaseous Jovian planets, formed farther away from the heat of the Sun, are formed from light weight nebulae "dust."
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two charges, each of magnitude 4.02 c, are placed at the ends of a meter stick. find the electric potential (relative to infinity) at the 39.7 cm mark of the meter stick.
Answers
At the 39.7 cm mark on the meter stick, the electric potential (relative to infinity) is -140.74 x 106 V.
What does "electric potential" mean?Electric potential is the effort required to transport an units charge from one place to another in the presence of an electric field. Earth is typically chosen as the reference point, but any location outside the range of the applied electric charge can be used. potential electricity.
Let the negative charge be located at the left end of the meter stick and the positive charge at the right end. E = kq / x2, where k is the Coulomb constant (8.99 x 109 Nm2/C2) and q seems to be the charge at the left end of the meter stick, can be used to calculate the electric field at a location x cm from the left end of the meter stick (4.02 C).
The following equation can be applied to compute the electrical potential difference seen between left end of the meter stick & infinity:
ΔV left = -kq / d = -kq / 100 cm = -kq / 0.01 m = -8.99 x 10^9 Nm^2/C^2 * 4.02 C / 0.01 m = -359.57 x 10^6 V
Similarly, the electric potential difference between the right end of the meter stick and infinity can be calculated as:
ΔV right = kq / d = kq / 100 cm = kq / 0.01 m = 8.99 x 10^9 Nm^2/C^2 * 4.02 C / 0.01 m = 359.57 x 10^6 V
The total electric potential difference between the 39.7 cm mark and infinity can then be calculated as:
ΔV_total = ΔV_left + ΔV_right * (100 cm - 39.7 cm) / 100 cm = -359.57 x 10^6 V + 359.57 x 10^6 V * (100 cm - 39.7 cm) / 100 cm = -359.57 x 10^6 V + 218.83 x 10^6 V = -140.74 x 10^6 V
Therefore, the electric potential (V) at the 39.7 cm mark relative to infinity can be calculated as:
V = ΔV_total = -140.74 x 10^6 V
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3.
How far can a person run in 15 minutes if he or she runs at an average speed of 16 km/hr
(HINT: Remember to convert minutes to hours.)
Answers
Answer:
about 4 km
Explanation:
15 minutes is a quarter of an hour, so you divide 16km by 4 to get your answer
What term is used to describe a force of attraction between objects that is due to their masses?.
Answers
Gravitational force; a force of attraction between objects that is due to their masses.
the amount of the gravitational force is directly proportional to the masses of the two items and inversely proportional to the square of the distance between the two objects.
Gravitational force is an attractive force that exists between all objects with mass.
F=Gm₂m₂/d²
Where m1 and m2 are the masses of the objects in kilograms, d is the separation between them in meters, and G is the global gravitational constant (i.e., it has the same value across the universe).
G=6.67 x 10-11 N m2/kg2
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At a particular speed, a jumbo jet can travel its own length in 20 seconds. At this same speed, the jumbo jet taxied completely past a 710-foot-long hangar in 70 seconds, as shown. What is the length of the jumbo jet in feet
Answers
A jumbo jet can fly its whole length in 20 seconds at a certain speed and has a 284-foot length. The big jet taxied completely past a 710-foot-long hangar in 70 seconds while travelling at the same speed.
In physics, you can get average speed by dividing the total distance travelled by the total time needed to travel that distance. Speed is the rate of change in an object's position, expressed in metres per second. The rate at which an object travels a distance is considered its speed. High speed describes an object that is travelling quickly.
P should represent the plane's length in feet.
20p = (710+p)/20p = 14200+20p 50p = 14200 p = 284ft
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(a) Calculate the height of a building if the pressure measured at the bottom of the building is 1011.1 hPa and the pressure measured at the top of the building is 999.3 hPa. Assume that the acceleration due to gravity is 9.8 m s-2 and the density of air is 1.2 kg m-3).
Show your workings, using arithmetic symbol conventions as follows:
* (for multiplication)
/ (for division)
+ (for addition)
- (for subtraction)
(b) Discuss the possible sources of inaccuracy in your calculation
Answers
The height of a building if the pressure measured at the bottom of the building is 1011.1 hPa and the pressure measured at the top of the building is 999.3 hPa is 98.3 meters
(a) To calculate the height of the building using the pressure difference, we can apply the hydrostatic pressure equation:
ΔP = ρ * g * h
where:
ΔP is the pressure difference,
ρ is the density of air,
g is the acceleration due to gravity,
and h is the height of the building.
h = ΔP / (ρ * g)
h = 1180 Pa / (1.2 kg/m^3 * 9.8 m/s^2)
h ≈ 98.3 meters
(b) Possible sources of inaccuracy in the calculation could include variations in air density due to temperature and humidity changes, which might affect the density (ρ) value used in the equation. The assumption of constant acceleration due to gravity (g) may also introduce slight inaccuracies if the building's height is significant. Additionally, air pressure measurements may have some inherent errors or uncertainties associated with the measurement instruments used.
It's important to note that the calculated height using pressure difference alone assumes a homogeneous atmosphere and neglects other factors such as wind effects, variations in air composition, and altitude-related changes in gravity. These factors can contribute to further inaccuracies in the calculation.
To enhance accuracy, it is advisable to consider multiple measurement techniques, such as using altitude or laser-ranging devices, and accounting for other relevant factors that could affect the calculation.
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If a coronal mass ejection occurs on the Sun that expels material directly toward Earth at a speed of 1,500 kilometers per second (km/s), how long will it take these charged particles to reach Earth
Answers
If a coronal mass ejection occurs on the Sun that expels material directly toward Earth at a speed of 1,500 kilometers per second (km/s), it would take approximately 17 hours for these charged particles to reach Earth.
Coronal mass ejections (CMEs) are powerful eruptions of plasma and magnetic field from the Sun's corona. The time it takes for a CME to travel from the Sun to Earth depends on the speed of the particles and the distance between the Sun and Earth. Since the distance between the Sun and Earth is about 149.6 million kilometers, and the speed of the particles is 1,500 km/s, it would take approximately 17 hours for the CME to reach Earth. During this time, the particles can interact with the Earth's magnetic field, potentially causing geomagnetic storms and other space weather effects
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How does ladder line compare to small-diameter coaxial cable such as RG-58 at 50 MHz?
A. Lower loss
B. Higher SWR C. Smaller reflection coefficient D. Lower velocity factor
Answers
Answer:
lower loss
Explanation: i had the same question
What type of force holds the atoms within a molecule together?
O intramolecular
O electromagnetic
O gravity
O nuclear
Answers
Therefore, Intramolecular forces holds atom that in same molecules together
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Answer:
A. IntramolecularExplanation:
I just did this question and this was the right answer for me. Hope this helps!
Miles and Allison are conducting a science experiment on bacteria and
they have a different hypothesis about what is going to happen. After
repeating their experiment several times, they realize that the results of
the experiment do not clearly support either hypothesis. What should
Miles and Allison do next?
O A. assume Miles hypothesis is correct
O B. revise their hypotheses and do another test
C. change their results to match one of their hypotheses
O D. repeat the experiment until it supports one of their hypotheses
Answers
A 2. 0 kg ball is dropped from a rest 10m above the ground. How fast will the ball hit the ground
Answers
Answer:
A little over a second
Explanation:
gravity pulls down on objects at a speed of 9.8 meters a second
identify the forces on the car. check all that apply. identify the forces on the car.check all that apply. gravity f⃗ gf→g normal force n⃗ n→ friction f⃗ f→ drag f⃗ drag
Answers
Gravity, friction, and drag force are the forces that are acted on a car.
What are gravity, friction, and drag force?Gravity is defined as a force by which one body attracts other objects toward its center. Friction is the force that resists the relative motion of solid surfaces, fluid, and material that are sliding against each other. There are several types of friction force i.e. Dry friction is a type of force that opposes the relative motion of two solid surfaces that are in contact with each other.
Drag is a mechanical force that is generated by the interaction and physical contact of a solid body with a liquid or gas. It is not produced by a field force, gravitational field, or an electromagnetic field, in which one object can affect another object without any physical contact with each other.
So we can conclude that the forces acting on the car are gravity, friction and drag force.
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A wave with a wavelength of 125 meters is moving at a speed of 20 m/s. What is it’s frequency
Answers
Answer:
0.16Hz
Explanation:
wavelength (λ) = 125 meters
speed (V) = 20 m/s
frequency (F) = ?
Recall that frequency is the number of cycles the wave complete in one
second. And its value depends on the wavelength and speed of the wave.
So, apply the formula V = F λ
Make F the subject formula
F = V / λ
F = 20 m/s / 125 meters
F = 0.16 Hz
. The net force F acting on an object that moves along a straight line is given as a function of time t by 2 F t( ) = κt + τ , where 2 κ = 1 N s and τ = 1 N . What is the change in momentum of the object from t = 0 s to t = 3 s?
Answers
The change in the momentum of the object moving along a straight line is determined as 3 Ns.
Change in momentum of the object
The change in the momentum of the object is equal to impulse received by the object.
The impulse received by the object is determined from the product of force and time of action.
J = Ft
Ft() = kt + τ
at time 0 s
Ft(0) = 1(0) + 1
Ft(0) = 1 Ns
at time , t = 3 s
Ft(3) = 1(3) + 1
Ft(3) = 4 Ns
Change in momentum from 0 s to 3 s, = 4 Ns - 1 s = 3 Ns
Thus, the change in the momentum of the object moving along a straight line is determined as 3 Ns.
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What city in North America starts with o and has six letters
Answers
Answer:
Ottawa
Explanation:
This is a city found in Canada
HOPE IT HELPED
Electrons that are free to move in metals
Answers
Answer:
Brainliest please
Explanation:
I will start by saying that Metals by their very nature are conductors of electricity. Now metals exhibit “metallic bonding” which holds its structure together. Unlike other materials which exhibit covalent bonding, it's atoms are not bonded by “electron sharing”. Rather they are bonded by the availability of valence electrons. Now within a metals atomic structure, the metal atoms lose the electrons in thier outermost shell (valence electrons), thus becoming positively charged ions (cations )