An alpha particle (6.70 10-27 kg, 3.2 10-19 Coulomb) travels at ...

[fnuegbu]

An alpha particle (6.70  10-27 kg, 3.2  10-19 Coulomb) travels at 0.965c. What is its:
 
  (a) rest energy (in eV)?
  (b) total energy (in eV)?
  (c) kinetic energy (in eV)?

Question 2

A 1.8 kg solid disk pulley of radius 0.11 m rotates about an axis through its center.
 
  (a) What is its moment of inertia?
  (b) Starting from rest, a torque of 0.22 m-N will produce what angular acceleration?

[ktidd]

Answer to Question 1

(a) 3.76 GeV
(b) 14.4 GeV
(c) 10.6 GeV

Answer to Question 2

(a) 1.1  10-2 kg  m2
(b) 20. rad/s2