Se suspende un cuerpo de un dinamómetro y éste indica que su peso es 4 N. A continuación se introduce el cuerpo (aún suspendido del dinamómetro) en agua y el nuevo registro del dinamómetro indica 3,4 N

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?

Write the correct abbreviation for each metric unit

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of