You do 32 joules of work using a pair of scissors. The scissors do 25 joules of work cutting a piece of fabric. What is the efficiency of the scissors?

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

What are atoms of the same element with varying number of neutrons

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 = ?