in order to measure the properties of a battery, several resistors are connected to the battery in series and the terminal voltage is measured. in the first case, the resistor has resistance r1

Answer:

The height is "89.61 m". A further explanation is given below.

Explanation:

According to the question,

Mass of rocket,

m = 5 kg

Time,

t = 4.6 s

Initial speed of rod

u = o m/s

Final speed,

v = 39 m/s

drag,

= 60 N

So,

⇒ acceleration, \(a=\frac{v-u}{t}\)

                              \(=\frac{39-0}{4.6}\)

                              \(= 8.478 \ m/s^2\)

⇒ \(F_{net}= Net \ force\)

           \(=ma\)

           \(=5\times 8.478\)

           \(=42.89 \ N\)

Now,

The thrust will be:

⇒ \(Thrust-weight-drag=Net \ force\)

⇒ \(Thrust-(5\times 9.8)-60=42.89\)

⇒           \(Thrust-49-60=42.89\)

⇒                 \(Thrust-109=42.89\)

⇒                           \(Thrust=42.89+109\)

⇒                           \(Thrust=151.89 \ N\)

The height will be:

⇒ \(h=\frac{1}{2} at^2\)

      \(=\frac{1}{2}\times 8.47\times (4.6)^2\)

      \(=\frac{1}{2}\times 8.47\times 21.16\)

      \(=89.61 \ m\)

The average angular velocity of the beach ball is 2.83 rad/s.

Angular velocity is a measure of how fast an object is rotating. It is defined as the rate of change of angular displacement over time. In this case, the beach ball starts with an initial angular velocity of 15 rad/s and comes to a complete stop after 5.3 seconds.

To find the average angular velocity, we divide the total angular displacement by the total time.

Since the ball stops completely, its final angular velocity is zero. The initial angular velocity is 15 rad/s. Therefore, the change in angular velocity is 15 - 0 = 15 rad/s. The time taken for this change is 5.3 seconds.

To find the average angular velocity, we divide the change in angular velocity by the time taken:

Average angular velocity = Change in angular velocity / Time taken

Average angular velocity = 15 rad/s / 5.3 s = 2.83 rad/s

Therefore, the average angular velocity of the beach ball is 2.83 rad/s.

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Answer:

45

Explanation:

Answer:

F_f = 370.636 N

Explanation:

We are given;

co-effficient of static friction;μ = 0.62

mass of the object;m = 61 kg

acceleration due to gravity;g = 9.8 m/s²

The maximum force of static friction is given by the formula:

F_f = μmg

Plugging in the relevant values, we have;

F_f = 0.62 × 61 × 9.8

F_f = 370.636 N

Now, we are told that a horizontal force of 272 N in the negative x direction to try and move.

Since the Frictional force exceeds this horizontal force, it means the Fridge is not going to move and would require a greater force

Answer:

\(F=2.93\cdot 10^{-10}~N\)

Explanation:

Newton’s Law of Universal Gravitation

Objects attract each other with a force that is proportional to their masses and inversely proportional to the square of the distance.

\(\displaystyle F=G{\frac {m_{1}m_{2}}{r^{2}}}\)

Where:

m1 = mass of object 1

m2 = mass of object 2

r     = distance between the objects' center of masses

G   = gravitational constant: \(6.67\cdot 10^{-11}~Nw*m^2/Kg^2\)

The asteroids have masses of \(m1=5.34\cdot 10^{3}~Kg\) and \(m2=2.06\cdot 10^{4}~Kg\) and are separated by r=5,000 m.

Calculating the gravitational force:

\(\displaystyle F=6.67\cdot 10^{-11}~Nw*m^2/Kg^2~{\frac {5.34\cdot 10^{3}~Kg \cdot2.06\cdot 10^{4}~Kg}{5,000^{2}}}\)

Calculating:

\(\mathbf{F=2.93\cdot 10^{-10}~N}\)

Answer:

D. 2.93 x 10-10 N​

Explanation:

Answer got deleted? Dont delete my answer 'katie'

btw got it right

Explanation:

work done=force*distance

force=50n

distance=75m

therefore work done is

50*75=3750joules

According to the given statement ,we can use the equations of motion and the concept of free fall.  Therefore, the height of the table is approximately 0.085 meters.

To determine the height of the table, we can use the equations of motion and the concept of free fall.

First, let's identify the known values:
- The distance the soda can rolled horizontally, 0.225 m.
- The time it took for the soda can to land, 0.416 s.
- The acceleration due to gravity, which is approximately 9.8 m/s².

Since the can was rolling horizontally, we can ignore any initial vertical velocity and consider only the vertical motion of the can.

Using the equation of motion for vertical displacement:
s = ut + (1/2)at²

Where:
- s is the vertical displacement
- u is the initial vertical velocity (which is zero in this case)
- t is the time
- a is the acceleration due to gravity

In this case, we want to find the height of the table, which is the vertical displacement. So we can rearrange the equation to solve for s:

s = (1/2)at²

Plugging in the values:
s = (1/2) * 9.8 m/s² * (0.416 s)²

Simplifying:
s = (1/2) * 9.8 m/s² * 0.173056 s²

s = 0.085 m

Therefore, the height of the table is approximately 0.085 meters.

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Answer:

sodium chloride

Explanation:

Sodium chloride is an ionic compound. The ions of the sodium chloride compound is sodium ion and chloride ion.  The sodium ion is cation while the chloride ion is an anion. Sodium chloride is a very stable compound because of the mutual attraction of oppositely charged ions.

Answer:

it covers your phone so when you drop it it reduces the chance and breaking

Answer:

in case of a car crash they will prevent you from flying out of your seat (not litteraly) and keep you safer than what you would be without them!

Explanation:

to keep you safe (simple answer lol)

The density of a cube that has a mass of 12. 6 and a measured  length of  4.1 cm is 0.18 kg/cm³

Density=mass/volume

mass=12.6

volume=68.9

density=12.6/68.9

density=0.18 kg/cm³

Density is defined as a material substance's mass per unit volume. Density is described by the equation d = M/V, where d stands for density, M for mass, and V for volume. Grams per cubic centimeter is the unit of measurement for density. For instance, compared to Earth's density of 5.51 grams, water has a density of 1 grams per cubic centimeter . Another way to express density is in kilograms per cubic meter (in meter-kilogram-second or SI units), It is easy to determine the relationship between mass and volume using density. For instance, the formula for determining a body's mass is M = Vd, while the formula for determining a body's volume is V = M/d.

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A graph is a pictorial representation of a set of objects where some pairs of objects are connected by links.

An image graph or pictograph is a graph used to display data that use pics or symbols to represent facts. The interconnected items are represented through factors termed vertices, and the hyperlinks that connect the vertices are known as edges. amongst different forms of information representations possible, the representation which includes images and pictorial representation of facts is referred to as a pictograph.

Pictographs and bar graphs are pictorial representations of numerical records. answer: real. with the aid of the definition, pictographs and bar graphs are pictorial representations of the numerical data. the records presented thru pictures or image of various objects is called a pictorial representation of facts. The photos of different objects are used to symbolize specific statistics, so such pictorial data are called pictographs.

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Answer:

-272.1

Explanation:

1K − 273.15 = -272.1°C

Answer:

Explanation:

Astronauts must wear spacesuits whenever they leave a spacecraft and are exposed to the environment of space. In space, there is no air to breath and no air pressure... Spacesuits are specially designed to protect astronauts from the cold, radiation and low pressure in space. They also provide air to breathe.

Answer:

Consider a satellite with mass Msat orbiting a central body with a mass of mass MCentral. The central body could be a planet, the sun or some other large mass capable of causing sufficient acceleration on a less massive nearby object. If the satellite moves in circular motion, then the net centripetal force acting upon this orbiting satellite is given by the relationship

Fnet = ( Msat • v2 ) / R

Explanation:

The acceleration of the satellite released from a spacecraft orbiting a planet at an altitude of 120 km and the planet has a mass of 5.2 x 10^23 kg and a radius of 2800 km is 4.426 *  \(10^6\)  \(m/s^2\).

The term "acceleration" refers to the rate and direction at which velocity varies over time. Acceleration is the change in direction or speed of an object or points moving ahead. The frequent change in direction causes motion on a circle to rise even when the speed remains constant.

For all other motions, these effects increase the acceleration. A vector quantity, acceleration, is something that has both a magnitude and a direction. Velocity is a vector quantity as well.

Given:

The altitude of the spacecraft, h = 120 km,

The mass of the planet, m = \(5.2 * 10^{23}\) kg,

The radius of the planet, r = 2800 km.

Calculate the acceleration by the formula given below,

A = \(G* m /r^2\)

Here, A is the acceleration, G is the gravitational constant,

Substitute the values,

A = 6.674 * \(10^{-11}\) *5.2 * \(10^{23}\) / \(2800^2\)

A = 4.426 *  \(10^6\)  \(m/s^2\)

Therefore, the acceleration of the satellite is 4.426 *  \(10^6\)  \(m/s^2\)

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Explanation:

No, this ramp is not safe. The maximum safe incline for a ramp is 8.5 degrees, and this ramp is steeper than that. A ramp that is too steep could cause cars to lose control, which could lead to accidents.

To calculate whether this ramp is safe, we need to know the length of the ramp.

Given from the figure, the length of ramp = 95

the width of ramp = 15

Let the steep angle = α

The maximum safe incline for a ramp is = 8.5degrees.

Tanα = 15/95 = 3/19

Tanα = 0.158

=> \(\alpha = Tan^{-1}(0.158)\)

=> α =  8.98°

8.98°  >  8.5°  (maximum safe incline )

So, the ramp is not safe.

Additionally, a ramp that is too steep can make it difficult for drivers to properly gauge their speed and maneuver the ramp safely. For all of these reasons, it is important that ramps in a parking garage be built with a maximum incline of 8.5 degrees.

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Answer:

I = 1/2 M R^2       moment of inertia

Translational energy due to rotation

Er = 1/2 I ω^2 = 1/2 M R^2 ω^2 = 1/2 M V^2       since V = R ω

Thus (A) the translational KE is equal to the rotational energy and

Ek = Er + Et      for the total energy of the cylinder

Among the reasons for the frequent use of composite measures is that they give a more comprehensive and accurate indication of a given variable. Besides, the researcher is seldom able to develop in advance single indicators of complex concepts. A single data item might not have enough categories to provide a range of variation. And lastly, they are efficient data reduction devices.

So, the correct answer is option (e) all of these choices.

Composite measures are used to combine several variables or scores into a single measurement or index. In other words, they are multidimensional measurement tools. It is useful to make this kind of index because it is possible to calculate the reliability and validity of composite measures, which are statistical measures that indicate whether or not the measurements were conducted accurately or are otherwise legitimate.

For example, if a researcher wants to assess the economic development of a country, he/she could create a composite measure by combining data on GDP per capita, literacy rates, and poverty rates. In this case, each of the three variables reflects a different aspect of economic development.

So, the correct answer is E.

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Energy absorbed by the radiologist is 1.775*10^-6J.

To find the answer, we have to know about the radiation.

           \(D=\frac{E}{m}\)

where; E is the energy absorbed and m is the mass of the body.

         \(E=D*m=2.5*10^{-6}J/kg*71kg=1.775*10^{-4}J\)

Thus, we can conclude that, the Energy absorbed by the radiologist is 1.775*10^-6J.

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My understanding of the concept of when a baby is considered alive is based on the medical, legal, and ethical standards provided by the scientific and medical communities, and it is not based on personal beliefs or opinions.

The determination of when a baby is considered alive is a complex and nuanced issue that is influenced by a variety of factors, including medical, legal, religious, and ethical considerations.

Therefore, it is important to consult with qualified professionals in each area to gain a better understanding of this topic.

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Complete Question:

What I your view on when the baby I alive? What standard or standard are you using to form your opinion?

Answer:

i dont know

Explanation:

hello

Explanation:

acceleration is the Changing of throut per unit time ....

and in uniform motion .....

in that the speed of an object is uniform means same

Answer:

36400N

Explanation:

f =9100×4

f=36400N

-35.39dB is the intensity level of the sound for the more distant listener relative to that for the nearer listener

By using the inverse square law,

As one listener is 49.5 times farther away from the source of the sound than the other.

Then Increasing the distance by 49.5 times reduces the intensity by

= 3453.8 times

The intensity level of the sound (in decibels) for the more distant listener relative to that for the nearer listener is:

= 10log(ratio of intensities)

= 10log(1/3453.8)

= 10log(0.000289)

=10 × -3.539

= -35.39dB (The negative sign represents the sound is less intense for the farther listener)

So, the intensity level of the sound (in decibels) for the more distant listener relative to that for the nearer listener is -35.39dB

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Answer:

13.636364 m/s2

Answer:

Vf=60m/s

Vi=0 because it starts from rest

t=4.4s

a=?

a=Vf-Vi/t

a=60-0/4.4

a=60/4.4

a=13.63m/s^2

The wavelength of the light beam having a frequency of 6 × 1017 hz is 0.05 nm.

To calculate the wavelength of a light beam, we can use the formula:

λ = c/f

Where λ is the wavelength, c is the speed of light and f is the frequency of the light.

The speed of light is approximately 3 x 10^8 m/s, we can use this value to find the wavelength.

λ = c/f

λ = (3 x 10^8 m/s) / (6 x 10^17 Hz)

λ = 0.05 nm

So the wavelength of the light beam is 0.05 nm.

It's important to mention that the wavelength is inversely proportional to the frequency, meaning if the frequency is high the wavelength is short and if the frequency is low the wavelength is long.

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Heat is necessary to warm 500g of water from 20°C to 65°C is 50 Fahrenheit heat required.

Fahrenheit temperature scale, scale based on 32° for the freezing point of water and 212° for the boiling point of water, the interval between the two being separated into 180 equal parts.

Heat transfer is a specialization of thermal energy that involves the generation, use, conversion, and deal of thermal energy between physical systems.

F = 9/5 C + 32     conversion from C to F

F = 9/5 × F/5 + 32

25 F = 9 F + 800

16 F = 800

F = 50

complete answer shown below

2. How much heat is necessary to warm 500g of water from 20°C to 65°C?​

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