Physics, 19.10.2021 09:00 tdyson3p6xvtu
3. You serve a volleyball with a mass of 2.0 kg. The ball leaves your hand with a speed of 25 m/s. What is the ball's kinetic energy?
Answers: 1
Physics, 22.06.2019 02:00
An object has a weight of 500 on earth what is the mass of this object
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Physics, 22.06.2019 10:30
Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.
Answers: 3
Physics, 22.06.2019 14:00
Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.
Answers: 1
Physics, 22.06.2019 14:00
How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c
Answers: 3
3. You serve a volleyball with a mass of 2.0 kg. The ball leaves your hand with a speed of 25 m/s....
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