The time rate of change of the total angular momentum of a system ...

[K@]

The time rate of change of the total angular momentum of a system of particles equals the resultant external torque on the system.
 
  Indicate whether the statement is true or false

Question 2

A navigational beacon in deep space broadcasts at a radio frequency of 50 MHz. A spaceship approaches the beacon with a relative velocity of 0.40c. The spaceship passes the beacon and departs from it with a DIFFERENT relative velocity.
 
  The beacon signal is now detected at a frequency of 40 MHz. What is the new velocity of the spaceship relative to the beacon?
  A) 0.24c B) 0.28c C) 0.26c D) 0.20c E) 0.22c

[AISCAMPING]

Answer to Question 1

TRUE

Answer to Question 2

E

[K@]

Thanks for the timely response, appreciate it

[CAPTAINAMERICA]

Excellent