Calculate the power in a circuit where a source of 100V produces 2A in 50 ohm resistor.
Calculate how much current is needed for a 600W, 120V toaster.
Calculate how much power is generated in a 120V, 10 amp power drill.
Convert 1.2kw into units of watts(W).
Answers
1.2 kW is equivalent to 1200 watts.To calculate the power in a circuit, we can use the formula P = VI, where P is power, V is voltage, and I is current.
Therefore, the power in the circuit is 200 watts.
To calculate the current needed for a 600W, 120V toaster, we can use the same formula as before, but solve for I:
P = VI => I = P/V
So, we can substitute the values given:
I = 600W / 120V = 5A
Therefore, the toaster needs 5 amps of current to operate at 600 watts.
To calculate the power generated by a 120V, 10A power drill, we can use the same formula as before:
P = VI = (120V)(10A) = 1200W
Therefore, the power generated by the power drill is 1200 watts.
To convert 1.2 kW to watts, we need to multiply by 1000 since there are 1000 watts in 1 kilowatt:
1.2 kW * 1000 = 1200 W
Therefore, 1.2 kW is equivalent to 1200 watts.
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Related Questions
A block of mass m oscillates on a horizontal spring with period T = 2.0 s. If a second identical block is glued to the top of the first block, the new period will be:
A. 1.0 s B. 1.4 s C. 2.0 s D. 2.8 s E. 4.0 s
Answers
A block of mass m oscillates on a With a period of T = 2.0 s, a block of mass m oscillates on a horizontal spring. The new period will be (D) 2.8 s if a second identical block is adhered on top of the first block.
When a second identical block is glued to the top of the first block, the new period of the oscillation will be affected. The period of an oscillating mass-spring system depends on the mass and the spring constant.
In this case, by adding the second block, the total mass of the system becomes 2m (since both blocks are identical). The spring constant, however, remains the same since the same spring is used.
The period of oscillation (T) is inversely proportional to the square root of the total mass (\(m_{\text{total}}\)) according to the formula \(T = 2\pi\sqrt{\frac{m_{\text{total}}}{k}}\), where k is the spring constant.
Therefore, the new period (\(T_{\text{new}}\)) can be calculated as follows:
\(T_{\text{new}} = 2\pi\sqrt{\frac{{2m}}{{k}}} = \sqrt{2} \cdot (2\pi\sqrt{\frac{{m}}{{k}}})\)
As we can see, the new period is √2 times the original period. Therefore, the new period will be:
\(T_{\text{new}}\) = √2 * T = √2 * 2.0 s ≈ 2.8 s
Therefore, the answer is D. 2.8 s.
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The chemical bonds in sugar, is that potential or kinetic energy?
Answers
Answer:
If something has atoms that are bound together in covalent bonds like sugar, it usually has potential energy or chemical energy. Because potential energy is often stored in covalent bonds that hold atoms together in the form of molecules.
I need help on these 3 questions.
I need the original formula used and the givens
Answers
Answer:
sorry mate i dont know
Explanation:
sorry i just need points and i hope you get your answers
Las ruedas de una locomotora de 500 toneladas tiene un coeficiente de friccion estatico con las vias de 0.15 ¿Cual es la fuerza de traccion tangencial maxima ejercida entre las vias y las ruedas?
Answers
Answer:
Ff = 7.35*10^5 N
Explanation:
To find the maximum transverse pulling force you use the following formula, for the friction force:
\(F_f=\mu N=\mu Mg\) (1)
μ: friction coefficient = 0.15
N: normal force, which is equal to the weight over the wheel
M: mass of th train = 500 ton = 500 000 kg
g: gravitational acceleration = 9.8 m/s^2
You replace the values of the variables in the equation (1):
\(F_f=(0.15)(500000kg)(9.8m/s^2)=735000 N=7.35*10^5N\)
hence, the maximum transverse pulling force is 7.35*10^5 N
Using the diagram above, the coefficient of kinetic friction for copper is ____ (Your answer should be given to the nearest thousandths.)
This coefficient _____ applies to all similar copper surfaces.
Answers
Answer:
μ= 0.0375, kinetic
Explanation:
For this exercise we set a reference system with the x axis parallel to the chord
Y axis
N - W = 0
N = W
X axis
T - fr = 0
the expression for the friction force is
fr = μ N
we substitute
T - μ W = 0
μ = T / W
we calculate
μ = 1.5 / 40
μ= 0.0375
coefficient of kinetic friction
The test objects for the force that acts at a distance were _____________________________
Answers
The test objects for the force that acts at a distance were selected masses used to study the relationship between applied force and resulting acceleration or motion.
In order to study the force that acts at a distance, test objects with different masses were chosen. These selected masses were used to investigate the relationship between the force applied and the resulting acceleration or motion. By varying the masses of the test objects, scientists and researchers were able to observe and analyze how the force acting at a distance affected the motion of the objects, providing insights into the principles of gravitational attraction or other forces operating over a distance.
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you have been hired to design a spring-launched roller coaster that will carry two passengers per car. the car goes up a 10-m -high hill, then descends 15 m to the track's lowest point. you've determined that the spring can be compressed a maximum of 2.2 m and that a loaded car will have a maximum mass of 440 kg . for safety reasons, the spring constant should be 11 % larger than the minimum needed for the car to just make it over the top.
Answers
In order to design a spring-launched roller coaster that will carry two passengers per car, a spring constant of approximately 4255.78 N/m is needed for the roller coaster to be safe.
Several factors must be taken into consideration. The car must go up a 10-m-high hill and then descend 15 m to the track's lowest point. The maximum amount the spring can be compressed is 2.2 m, and a loaded car will have a maximum mass of 440 kg. Additionally, for safety reasons, the spring constant should be 11% larger than the minimum needed for the car to just make it over the top.
To determine the spring constant needed for the roller coaster, we can use the following formula:
U = (1/2)kx²where U is the potential energy of the spring, k is the spring constant, and x is the distance the spring is compressed. To find the minimum spring constant needed for the car to just make it over the top of the hill, we can set the potential energy of the spring equal to the potential energy of the car at the top of the hill:
U = mgh, where m is the mass of the car, g is the acceleration due to gravity, and h is the height of the hill.
U = (1/2)kx²mgh
= (1/2)kx²k = 2mgh/x²
Plugging in the given values, we get: k = 2(440 kg)(9.81 m/s²)(10 m)/(2.2 m)²k ≈ 3831.64 N/m. To find the spring constant needed for safety reasons, we can multiply the minimum spring constant by 1.11:k' = 1.11k' ≈ 4255.78 N/m
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If the plate area, plate separation, and dielectric constant are all doubles for a parallel plate capacitor, what happens to the capacitance?
Answers
If the cross-section of the area of the plate, the distance between the plate, and the dielectric constant are all doubled for a parallel plate capacitor, the capacitance of the parallel plate capacitor is doubled.
C = \(\frac{K\epsilon A}{d}\)
where C refers to the capacitance
K is the dielectric contsant
d is the separation between two plates
A is the area of the plates
According to the question, the new capacitance comes out to be
C' = \(\frac{2K\epsilon (2A)}{2d}\) = \(\frac{2K\epsilon A}{d}\)
C' = 2C
Therefore, we can say the parallel plate capacitance is doubled with a doubling of plate area, plate separation, and dielectric constant.
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Conservation of linear momentum
Answers
Momentum=
\(\\ \tt\longmapsto mv=80(5)=400kgm/s^2\)
Now
\(\\ \tt\longmapsto Force=\dfrac{Momentum}{Time}\)
\(\\ \tt\longmapsto Force=\dfrac{400}{0.3}\)
\(\\ \tt\longmapsto Force=1333.3N\)
Fill in the blank.
_______________, not velocity, is used to calculate the average acceleration.
Answers
Answer:
speed
Explanation:
Change in velocity, not velocity, is used to calculate the average acceleration. Velocity is displacement over time.
Acceleration:
It is defined as the ratio of change in velocity to time. It is given by:
Acceleration= Change in velocity / time
a= u-v / t
where,
u= initial velocity
v= final velocity
t= time
Thus, we can conclude that a change in velocity is used to calculate average acceleration.
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Help me please!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
I think 100V but I'm not sure.
how does the frequency of a radio wave compare to the frequency of the vibrating electrons that produce it?
Answers
Answer:
mass
Explanation:
suppose we have a 1-m and a 3-m diameter telescope. how does the light gathering power of the 3-m telescope compare to the 1-m telescope?
Answers
The light-gathering power of the 3-m diameter telescope compared to the 1-m telescope is 9 times.
The аmount of light cаptured by а telescope's primаry mirror is known аs its light-gаthering power. The аmount of light the mirror cаn collect is proportionаl to the squаre of its diаmeter.
The formulа for the light-gаthering power of а telescope is:
(Diаmeter of Telescope)²
For exаmple, if а 2-meter telescope аnd а 4-meter telescope аre compаred, the lаtter will be four times more powerful becаuse (4/2)² = 4.
Therefore, а 3-meter diаmeter telescope's light-gаthering power compаred to а 1-meter diаmeter telescope is (3/1)² = 9 times more powerful.
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Which statement describes the energy involved in diffusion?
Answers
hope that helps
Explanation: Diffusion requires energy only to move material in through the cell membrane. Diffusion does not require energy in any situation. Diffusion requires energy only to move material out through the cell membrane.
Answer:
The answer is B >:3
Explanation:
Safety belts protect people in cars in the event of an accident because, according to Newton’s laws of motion, when an impact causes the car to suddenly change its motion -
A.the speed of the people always increases, since now they have not one but two forces acting on them.
B.the speed of the car always increases, giving it greater force since the mass will remain the same.
C.the car now has a greater overall mass - its own mass plus the mass of the object by which it has been struck.
D.the people in the car will continue to move in the same direction and at the same speed as before the impact.
Answers
Answer:
D :)
Explanation:
When an impact causes the car to suddenly change its motion, (D) the people in the car will continue to move in the same direction and at the same speed as before the impact.
What is Newton's first law of motion?
Newton's first law of motion states that Unless influenced by an imbalanced force, a body at rest stays at rest, and a body in motion keeps moving in a straight path at a constant pace. This law is commonly known as law of inertia and the resistance of a body to maintain its state of rest is called inertia of rest, same as, the resistance of a body to maintain its state of motion is called inertia of motion.
When a car is moving with certain speed, the car along with the people inside the car is in inertia of motion. In an event of accident, the car comes in rest in no time but the man in the car is still in inertia of motion. So, his body moves forward in the car which may cause injuries. To prevent such injuries, the people inside a car are advised to use safety belts.
So, correct answer is option (D).
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What is the unit force used in gravity calculations and why is it called this
Answers
Answer:
newtons per kilogram (n/kg)
Explanation:
It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion.
Don’t u add these two when they are pointing in the same direction ? 250 N
250N
Answers
Answer:
you add
Explanation:
you should add the forces since they act in the same direction as that you'll resolve the two forces
a simple pendulum consisting of a bob of mass m attached to a string of length l swings with a period t.
Answers
The new period of oscillation if the mass of the bob is reduced by half is \(\frac{T}{\sqrt{2}}\) or T/√2.
Look at the attachment for a complete question. The period of oscillation of the simple pendulum
\(T \:=\: 2 \pi \sqrt{\frac{m}{k}}\)\(T \:=\: 2 \pi \sqrt{\frac{L}{g}}\)where
π = 3.14m = the mass of the bob (kg)k = the rope constant (N/m)L = the length of the swing (m)g = the acceleration due to gravity (m/s²)If we change the mass of the bob and didn't change the rope, the period also will change but the rope constant will not. The ratio of the period between the two condition
m₁ = mT₁ = Tm₂ = 0.50 mT² = 4π²m/k
T₁²: T₂² = m₁ : m₂
T²: T₂² = m : 0.50 m
T²: T₂² = 1 : 0.5
T₂² = 0.5T²
\(T_2 \:=\: \sqrt{0.5T}\)
\(T_2 \:=\: \sqrt{\frac{T}{2}}\)
T₂ = T/√2
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A rain cloud contains 4.2 × 10^5 kg of water vapor. How long would it take for a 4000 W pump to raise the same amount of water to the cloud’s altitude, 3.500 km?
Answers
Answer:
it will take 1,000.42 hours to raise the same amount of water.
Explanation:
mass of the water to be raised, m = 4.2 x 10⁵ kg
power applied in lifting the water, P = 4000 W
height through which the water will be lifted, h = 3.500 km = 3,500 m
The power applied the water is given as follows;
\(Power = Force \times Velocity\\\\P = FV\\\\P = ma \ \times \ V\\\\P = ma \ \times \ \frac{d}{t} \\\\P = mg \ \times \ \frac{h}{t} \\\\P = \frac{mgh}{t} \\\\t = \frac{mgh}{P} \\\\t = \frac{4.2\times 10^5 \times 9.8 \times 3,500}{4,000} \\\\t = 3,601,500 \ s = 1000.42 \ hours\)
Therefore, it will take 1,000.42 hours to raise the same amount of water.
The smallest bird is the Cuban bee hummingbird, which has a mass of only 1.7 g. If this bird did 8.8 10 –4J of work by exerting an upward force of 3.4 10 –4 N, how far did it fly?
Answers
Answer:
The distance the bird flew is approximately 2.59 meters
Explanation:
We list out the parameters in the question, and the required measurement as follows;
The mass of the Cuban bee hummingbird, m = 1.7 g = 0.0017 kg
The amount of work the bird does, W = 8.8 × 10⁻⁴ J
The amount of upward force the bird exerts, F = 3.4 × 10⁻⁴ N
Let 'd' represent the distance flown by the bird
(The downward force, \(F_g\) = The weight of the bird, W
W = The mass of the bird, m × The acceleration due to gravity, g
The acceleration due to gravity, g ≈ 9.81 × 10 m/s²
∴ \(F_g\) ≈ 0.0017 kg × 9.81 m/s² = 0.016677 N > F)
Given that the weight of the bird is larger than 'F', we assume that the force exerted by the bird is the net force, \(F_{NET}\) = F
Therefore;
Work done, W = Net Force, \(F_{NET}\) × Distance, d
∴ W = \(F_{NET}\) × d
d = W/\(F_{NET}\) = 8.8 × 10⁻⁴ J/(3.4 × 10⁻⁴ N) = 2.58823529 meters
The distance the bird flew, d ≈ 2.59 m.
What are 3 common uses for non-renewable energy?
Answers
Answer:- electricity, heating, transportation and manufacturing.
Explanation:First lets us know what non-renewable energy is.
Non-renewable energy is energy derived from finite resources that are not replaced quickly enough to keep up with the speed of consumption. For perspective, non-renewable energy sources will not be replenished in our lifetime, or, more accurately, many human lifetimes. Most non-renewable energy sources are fossil fuels such as petroleum and crude oil, coal, and natural gas¬, but nuclear fuel, mainly used to produce electricity, heating, transportation and manufacturing, is also generally classified as nonrenewable.
A/An _____ is described as a type of circuit in which there are several current paths.parallel circuitseries circuitshort circuitvoltage divider
Answers
In a parallel circuit the current flows trough different paths.
Then, A parallel circuit is described as a type of circuit in which there are several current paths.
How does newton’s third law of motion relate to a catapult?
PLEASE ANSWER ASAP. WILL GIVE BRAINLIEST
Answers
Answer: the force when the catapult swings has the same force as it does when coming down
Explanation:
for every reaction there is an equal opposite reaction
the scores of players on a golf team are shown in the table. the teams combined score was 0 what was travis's score?
Answers
Answer:
what table?
Explanation:
Answer:
-5
Explanation:
The range of a projectile is the vertical height reached; True or False?
Answers
Answer:
False
Explanation:
The range of a projectile is the horizontal height reached
How much work is done on a pumpkin with a force of 24 newtons when you lift it 15 meters? *
Answers
Answer:
I'm not that busy solving but I'll tell you the formula that Force x distance is equal to work done
The work is done on a pumpkin when we lift it by 15 m with 24 N is 360 J
What is Work ?Work done is the amount energy gained (loosed) in bringing the body from initial position to final position. It is denoted by W and its SI unit is joule(J).
i.e. Work(W) is force(F) times displacement(s).
W=F× s
When a body is displaced with 1 newton of force by 1 m, then we can say that work has been done on the body by 1 joule.
Writing for it's dimension,
W=F× s
Force has dimension [L¹ M¹ T²]
Displacement has dimension [L¹]
multiplying both the dimensions Force and Displacement
we get,
dimension of Work [L² M¹ T²]
According to newton's second law of motion,
Force(F) is mass(M) times acceleration(a).
i.e. F=ma
Given,
Force = 24 N
Displacement = 15 m
W=F.s= 24*15 = 360 J
Hence work done on pumpkin is 360 J
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The biological levels of organization range from a single organelle all the way up to the biosphere in a highly structured hierarchy. Your lab partner is struggling to understand the interaction between the levels in the biological hierarchy. Using the model, what explanations can your offer to help your classmate? Choose ALL that apply.
A) R makes up Q which makes up P which makes up S.
B) Cells that work together make up tissues, which comprise organs.
C) Similar cells working together make up organs which make up organ systems.
D) In the model, the animal cells make up tissues such as muscle or connective tissue.
E) Organs, such as the stomach and intestines, make up organ systems which interact with one another to maintain homeostasis.
Answers
The model that depicts the concept of biological levels of an organization which is ranging from single organelle to biosphere is explained by all the options given except for options A and C.
Biology is specifically the study that deals with various forms of life. Since life is considered a vast topic, scientists classified this broad system into different organizational levels for better understanding.
The Biological levels of the organization are described as follows:
The biological level of organization of any living form is depicted and arranged from the simplest forms to the complex ones and thus, the order tends to start from organelles to the biosphere. The elaborated levels are in ascending order as organelles, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere respectively. Each level tends to combine with one another to give rise to the next level. One such example is that the cells that tend to work together make up the tissues, which further comprise the organs. Similarly, organ systems are formed by the interaction between certain organs in order to maintain homeostasis.
Considering all these facts, option C represents the statement that is incorrect as the cells cannot directly form organs without forming tissues and the letters in option A is not specific. And thus, we can conclude that except for options A and C, all the other options correctly depict the model of the Biological levels of the organization.
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if the jet in ngc 5128 is traveling at 5000 km/s and is 40 kpc long, how long will it take for gas to travel from the core of the galaxy to the end of the jet?
Answers
It would take approximately 2.4688 × 10^17 seconds or 7.82 million years for gas to travel from the core of the galaxy to the end of the jet, assuming a constant speed of 5000 km/s.
To calculate the time it would take for gas to travel from the core of the galaxy to the end of the jet, we need to use the formula: time = distance / speed.
Given that the jet in NGC 5128 is traveling at 5000 km/s and is 40 kpc (kiloparsecs) long, we first need to convert the distance from kpc to km. 1 kpc = 3.086 × 10^16 meters, which means 1 kpc = 3.086 × 10^19 km.
Therefore, the length of the jet in kilometers is 40 x 3.086 × 10^19 km = 1.2344 × 10^21 km.
Now we can calculate the time it would take for gas to travel from the core of the galaxy to the end of the jet as follows:
time = distance / speed
time = 1.2344 × 10^21 km / 5000 km/s
time = 2.4688 × 10^17 seconds
So, it would take approximately 2.4688 × 10^17 seconds or 7.82 million years for gas to travel from the core of the galaxy to the end of the jet, assuming a constant speed of 5000 km/s.
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asap please thank you!!
Answers
Answer:
Opinions of the author
Not relevant in a scientific paper :)
Which of these measures a wavelength.
Answers
Answer:
A
Explanation:
To measure wavelength, you would find the distance from crest (top of the wave) to crest.
Hope this helps! :)