Once a baseball has been hit into the air, what forces are acting upon it?

A person travels distance πR along the circumference of a circle of radius R. Displacement of the person is a. R b. 2R c. 2πR d. zero WHY?

In the vertical jump, an Kobe Bryant starts from a crouch and jumps upward to reach as high as possible. Even the best athletes spend little more than 1.00 s in the air (their "hang time").

In 4 - 5 sentences, summarize the science of the sport of curling and how it relates to friction

When a pair of balanced forces acts on an object, the net force that results is A. greater in size than both forces combined. B. equal to zero. C. greater in size than one of the forces. D. equal in size to one of the forces.

What two things can happen in the life of a massive star after it passes from the supernova stage?

In 1940, the Tacoma Narrows Bridge across the Puget Sound collapsed. The bridge was a suspension bridge. The wind blowing through the narrows matched the natural frequency of the bridge.

What has more momentum: a sports car moving at 100 mph or a train that is not moving?

What is your mass in kilograms?

The dimensions of a block that weighs 30 N are 0.23 mx 0.12 mx 0.075 m. What pressure does the brick exert on the ground if it is resting on its largest face?

What is the current in a circuit with a 9.0 V battery and a resistance of 36.0 Ω?