Answer:
Frictional force
Explanation:
The brakes of a car gets hotter than the brakes of a bicycle because more frictional force is expended in applying the brake on a car than a bicycle.
To brake a car, the concept of friction is usually adopted. Two surfaces that increases friction when they come in contact are used in braking.
Frictional force is a force that resists the motion of a body. This forces helps to have grasp of motion.
A car requires more resistance to motion to break it because it have more more mass and other component motions parameters.
A bicycle is lighter and will require little friction.
Some of the frictional force applied is converted to heat energy. The amount of this energy expended is proportional to the frictional force.
Answer:
180 miles/hr
Explanation:
15 min=1/4 hr
s= distance/time
s=45miles/1/4 hr
s=45miles x 4/1=180 miles/hr
The force of the collisions creates pressure on the container. ... Explain why atmospheric pressure changes as depth changes. Atmospheric pressure increases as depth increases because at lower levels of the atmosphere, there is more air above that is being pulled down by gravitational force.
I believe that B is the answer.
