Victoria has a crate of vegetables that weighs 100 newtons. she exerts a force of 100 newtons to lift the crate with a pulley. what’s the mechanical advantage in this situation?

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?

Why should the wavelength scale of spectroscope be calibrated