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Anna71 [15]
3 years ago
9

When two bodies at different temperatures are placed in thermal contact with each other, heat flows from the body at higher temp

erature to the body at lower temperature until them both acquire the same temperature. Assuming that there is no loss of heat to the surroundings, the heatSingle choice.
(1 Point)

(a) gained by the hotter body will be equal to the heat lost by the colder body

(b) the heat gained by the hotter body will be less than the heat lost by the colder body

(c) the heat gained by the hotter body will be greater than the heat lost by the colder body

(d) the heat lost by the hotter body will be equal to the heat gained by the colder body.​
Physics
1 answer:
Ratling [72]3 years ago
5 0

Answer:

Part <em>d</em> is correct.

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A skateboarder is accelerating forward.
kompoz [17]

Answer:

i dont really understand but when you accelerate you move faster. So i guess the skateboarder is moving fast forward

5 0
3 years ago
An object has a mass of 12kg. On Planet A, the object weighs 117.6 N. Is the force of gravity on Planet A equal to, less than or
kiruha [24]
Well I don't know !
Let's work it out:

       Weight = (mass) x (local acceleration of gravity)

         117.6 N  =  (12 kg) x (gravity)

         Gravity on Planet A  =  (117.6 N) / (12 kg)

                                       =      9.8 m/s²  exactly

The gravity on Planet-A is so close to Earth gravity
that nobody could ever tell the difference without
making sensitive measurements.
They are essentially equal.
4 0
3 years ago
How long does it take light from a camera to travel to the face of someone standing 7 meters away?
mestny [16]

The time taken for the light to travel from the camera to someone standing 7 m away is 2.33×10¯⁸ s

Speed is simply defined as the distance travelled per unit time. Mathematically, it is expressed as:

<h3>Speed = distance / time </h3>

With the above formula, we can obtain the time taken for the light to travel from the camera to someone standing 7 m away. This can be obtained as follow:

Distance = 7 m

Speed of light = 3×10⁸ m/s

<h3>Time =?</h3>

Time = Distance / speed

Time = 7 / 3×10⁸

<h3>Time = 2.33×10¯⁸ s</h3>

Therefore, the time taken for the light to travel from the camera to someone standing 7 m away is 2.33×10¯⁸ s

Learn more: brainly.com/question/14988345

8 0
2 years ago
Light travels at 300,000 km per second. Mars is 56 million km away from Earth. How many seconds does it take light to travel fro
alina1380 [7]

Answer:

<em> It takes 186.67 second for the light to travel from Mars to earth.</em>

Explanation:

Light: Light is a visible form of energy which is radiated outward from a source. Light travels in a straight line, and this phenomenon is called rectilinear propagation of light.

S = d/t .......................... Equation 1

making t the subject of the equation

t = d/S ......................... Equation 2

Where S = speed of light, d = distance between the earth and Mars, t = time

<em>Given: d = 56000000 km, S = 300000 km per seconds.</em>

<em>Substituting these values into equation 2</em>

<em>t = 56000000/300000</em>

<em>t = 186.67 seconds.</em>

<em>Thus it takes 186.67 second for the light to travel from Mars to earth.</em>

4 0
3 years ago
Q|C A string with linear density 0.500 g/m is held under tension 20.0 N. As a transverse sinusoidal wave propagates on the strin
julia-pushkina [17]

A string with linear density 0.500 g/m.

Tension 20.0 N.

The maximum speed  v_{y, max}

The energy contained in a section of string 3.00 m long as a function of v_{y, max}.

We are given following data for string with linear density held under tension :

μ = 0.5 \frac{g}{m}

  = 0.5 x 10⁻³ \frac{kg}{m}

T = 20 N

If string is L = 3m long, total energy as a function of v_{y, max} is given by:

E = 1/2 x μ x L x ω² x A²

  = 1/2 x μ x L x v^{2} _{y, max}

  = 7.5 x 10⁻⁴ v^{2} _{y, max}

So, The total energy as a function of  v^{2} _{y, max} = 7.5 x 10⁻⁴ v^{2} _{y, max}

Learn more about linear density problem here:

brainly.com/question/17190616

#SPJ4

3 0
2 years ago
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