If a ball of cheese is fired into frictionless space, the amount of force needed to keep it going equals how much? A. Half as much as the initial force
B. Zero, since no force is requires to keep it moving through a frictionless space.
C. Same as the initial force
D. twice as much as the initial force

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?

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

Acar travels 40m in 8 seconds find the car speed