Which of the following describes a training program that involves a variety of activities?

A. progressive training

B. cross-training

C. overtraining

D. multitraining

Block m1 of mass 2m and velocity v0 is traveling to the right (+x) and makes an elastic head-on collision with block m2 of mass m and velocity - 2v0 (i. e., traveling to the left). What is the velocity v1′ of block m1 after the collision?

Which of the following mechanical waves has the most energy A B C D

A teacher is demonstrating energy transformation with a basketball. He drops the ball from a fixed height and challenges his students to predict the height that the ball will bounce.

A stone is dropped from a height 1.8m. What will be it's velocity when it reaches the ground?

Yosef applies an input force of 50 N to a crowbar. The crowbar applies a force of 750 N to the lid of a crate. What is the mechanical advantage of the crowbar? The mechanical advantage of the crowbar is .

What role do volcanoes play in the flow of energy and cycling of matter on earth?

How does uniform linear motion differ from uniform circular motion?

A metal underground water pipe that is in direct contact with the Earth for? or more is a code-recognized as a grounding electrode and must be included in the grounding electrode system.

Bob has been Springfield's top meteorologist for ten years. He received data from satellite imaging and computer models that a huge storm system is headed Springfield's way.

A person runs off a cliff into a lake below. If the person leaves the cliff without a horizontal velocity of 4m/s, how far way from the cliff does he land is the cliff is 17m high?