The amount of heat required to raise 1 kg of pure water by 1 Co ...

[CharlieWard]

The amount of heat required to raise 1 kg of
  pure water by 1 Co is called
  a) a joule.
  b) a kilocalorie.
  c) a Btu.
  d) a calorie.

Question 2

A uniform rod is 2.0 m long. The rod is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest at the horizontal position. What is the angular acceleration of the rod at the instant the rod makes an angle of 70 with the horizontal?
 a. 3.7 rad/s2
  b. 1.3 rad/s2
  c. 2.5 rad/s2
  d. 4.9 rad/s2
  e. 1.9 rad/s2

[GCabra]

Answer to Question 1

b

Answer to Question 2

c

[CharlieWard]

Thanks for the timely response, appreciate it

[peter]

Wow, this really help