Starting from rest, a 2 kg body acquires a speed of 8 m/s in 2 ...

[pane00]

Starting from rest, a 2 kg body acquires a speed of 8 m/s in 2 seconds. The net force acting on the body is __________.
 Fill in the blank(s) with correct word

Question 2

What property of beta decay led to the proposal that the neutrino had to exist?
 a. Beta decay changes the charge of nucleons.
  b. Beta decay results in electrons with a single predictable kinetic energy.
  c. Positron rather than electron emission is observed from some nuclei.
  d. Beta decay can result in transmutation from one element to another.
  e. Beta decay results in electrons with a range of kinetic energy levels.

[mjenn52]

Answer to Question 1

8 N

Answer to Question 2

e