If the mass of the earth is 80 times that of the moon and its radius is 4 times that of the moon, how long will it take to reach the maximum height, a body thrown vertically upwards on the moon, with a speed of 20m / s?

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

Matter that emits no light at any wavelength is called