31. A narrow beam of protons produces a current of 1.6 x 10- A. There are 10 protons in each meter along the beam. Of the following, which is the best estimate of the average speed of the protons in the beam?
(A) 10-15 m/s
(B) 10-12 m/s
(C) 10-7 m/s (D) 10 m/s

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s