A proton moving at a 52.3° angle to a
magnetic field of 0.525 T feels a
magnetic force of 3.39 x 10-17 N. How
fast is it moving?

.
Charge of proton: e = 1.60 x 10-19 C
[?] m/s

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?