I need help y’all pls

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus

Which sound characteristic is not affected by the relative motion of an object