"Many people ride a bicycle for fun and exercise. Some people ride a bicycle to work because it saves money and benefits the environment by reducing the use of fossil fuels. Which of these is not an example of the bicycle using mechanical energy?

A. The pedals, gears, and chain help turn the wheels.
B. The wheels turn when the bicycle moves.
C. The front wheel guides the bicycle as it moves.
D. The reflector allows the bicycle to be seen at night.

a coal burning power plant

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

a=d/t

a="triangle"v/t

explanation:

a = acceleration

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft