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MaRussiya [10]
3 years ago
6

What is equal to the kinetic energy of a car with a mass of 0.5t (tonne) if it travels evenly at 70 km/h?

Physics
1 answer:
Aleonysh [2.5K]3 years ago
5 0
Formula for kinetic energy is 1/2mv^2 so that answer should most probably be 94521.6J
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When moving a couch, you exert a force of 400N and push it 4.0m. How much work have you done on the couch?
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Explanation: work equals force times distance so 400x4=1600 joules

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3) venus and earth are nearly the same size and distance from the sun. what are the main differences in the geology of the two p
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Venus has a surrounding that is approximately one hundred instances thicker than Earth's and has surface temperatures that are extraordinarily hot. Venus no longer has life or water oceans as Earth does.

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8 0
1 year ago
Helium gas at 20 °C is confined within a rigid vessel. The gas is then heated until its pressure is doubled. What is the final t
victus00 [196]

Answer:

586 K

Explanation:

Let P is the initial pressure.

Initial temperature, T₁ = 20°C = 293 K

Final pressure, P₂ = 2P

We need to find the final temperature of the gas.

The relation between the pressure and the temperature is as follows

P\propto T\\\\or\\\\\dfrac{P_1}{P_2}=\dfrac{T_1}{T_2}

Put all the values,

\dfrac{P}{2P}=\dfrac{293}{T_2}\\\\\dfrac{1}{2}=\dfrac{293}{T_2}\\\\T_2=2\times 293\\\\T_2=586\ K

So, the final temperature of the gas is 586 K.

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3 years ago
What are the two factors that determine the strength of the gravitational force between two objects?
Lena [83]

Answer:

mass and distance

Explanation:

took the test

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2 years ago
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