Acrate is lifted vertically 1.5 m and then held at rest. the crate has weight 100 n (i. e., it is reese (enr647) – hs onramps 04: intro to work and energy – mcdaniel – (34472020) 2 supported by an upward force of 100 n). how much work is being done to hold the crate 1.5 m above the ground in this way?

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.

Why does a collision with an airbag cause less damage than a collision with a steering wheel

What happens during the fall in september