Victoria has a crate of vegetables that weighs 100 n. she exerts a force of 100 n to lift the crate with a pulley. what's the mechanical advantage in the situation? less than one, equal to one, equal to zero, more than one.

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Gunpowder residue is most likely to show up where on a shooters hands