Which of the following is NOT true about the loudness of sound?
A. Sounds with less intensity sound softer.
B. Sounds with greater intensity sound louder.
C. Pitch is related to loudness.

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

Determine the maximum r-value of the polar equation r =3+3 cos 0