Air pressure with elevation. (a) increases (b) decreases (c) does not change

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)