A 10-g bouncy ball is confined in a 8.3-cm-long box. What is its minimum energy? (h = 6.626 10-34 J s)
A) 3.2 10-46 J B) 9.4 10-75 J C) 8.1 10-65 J D) 1.3 10-20 J
Question 2
An ideal solenoid with 3000 turns is 70.0 cm long. If its self-inductance is 25.0 mH, what is its radius? (0 = 4 10-7 T m/
A)
A) 0.0222 m
B) 0.00199 m
C) 327 m
D) 52.0 m