What is a force that does not involve physical contact between two objects?

a. gravitational force

c. constant force

b. field force

d. planetary force?

Suppose an object is moving in a straight line at 50 mi/hr. According to Newton's first law of motion, the object will:

Which direction is the force of friction? A. The same direction of the movement B. The opposite direction of the movement C. 90 degrees from the direction of movement

How can we produce energy by turning a turbine?

A solid cylinder with an unknown radius starts from rest at the top of a 12.0m long ramp inclined 20.3∘ above the horizontal. Calculate the cylinder's final velocity when it reaches the bottom of the ramp.

How long will it take a car to travel 9.0 m if it's going at 1.4 m/s?

3. A stone is thrown upward at an angle. What happens to the horizontal component of its velocity as it rises

An arc welder provides 250A of current when operating with a voltage of 40V. What is the power required by this welder? Explain your answer.

How do you say scuba dive in spanish

a boy hears the echo of his own voice from a distance hill after 0.8 seconds. If the speed of sound in air is 340m/s, calculate the distance of the hill from the boy.

Which of the following are found in plant cells buh not animal cells?