una cinta transportadora a debe girar a 5 rpm. El eje del motor, que gira a una velocidad de 3000 rpm y cuyo diámetro mide 2 mm, está conectado a una polea de 100 mm de diámetro. Sobre el eje de ésta se monta una nueva polea de 8 mm de diámetro que se une, mediante una correa, a la polea que arrastra a la cinta.

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

What is a costume plot? why is it important to a film or theater production?

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 = ?