According to the well-known equation E = mc2, A) mass and ...

[sheilaspns]

According to the well-known equation E = mc2,
 
  A) mass and energy travel at the speed of light squared.
  B) energy is actually mass traveling at the speed of light squared.
  C) mass and energy travel at twice the speed of light.
  D) mass and energy are related.
  E) none of the above

Question 2

A 25.0-mH inductor is connected in series to a 20.0- resistor through a 15.0-V dc power supply and a switch. If the switch is closed at t = 0 s, what is the time constant of this circuit?
 
  A) 0.800  10-3 s
  B) 0.800  10-2 s
  C) 0.500 s
  D) 1.25  10-3 s
  E) 12.5  10-2 s

[TheDev123]

Answer to Question 1

Answer: D

Answer to Question 2

D