If we increase the force applied to an object and all other factors remain the same that amount of work will
a. decrease
b. remain unchanged
c. increase
d. decrease the increase

The air that we breath is made mostly of which gaseous molecule

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?

Acar of mass 800kg is moving at a speed of 2.2m/s.