Aconstant net torque is applied to a rotating object. which of the following best describes the object's motion?
a. the object will rotate with increasing angular acceleration.
b. the object will have a decreasing moment of inertia.
c. the object will rotate with constant angular velocity.
d. the object will have an increasing moment of inertia.
e. the object will rotate with decreasing angular acceleration.
f. the object will rotate with constant angular acceleration.

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?