11. A depression in the ground due to a cave collapse or acidic water dissolution of limestone is called a

A. sinkhole.

B. stalagmite.

C. stalactite.

D. cave.

A 47.4 kg student runs down the sidewalk and jumps with a horizontal speed of 42 m/s onto a stationary skateboard Both the student and skateboard move down the sidewalk with a speed of 3.95 m/s. What's the skateboard's mass?

I need a short written description of Newton's three laws. Newton's First Law:Newton's Second Law:Newton's Third Law:

Why is water not used to control fires involving electrical equipment?

A beach ball is rolling in a straight line toward you at a speed of. 5 meters per second. It's momentum is. 25 kgxm/sec what is the mass of the ball

A 8000kg tow truck pulls a 3000kg car horizontally into a garage. if the motor of the tow truck exerts a forward thrust on the truck of 800N, what is the tension in the cable connecting the truck to the car? (neglect any forces of friction)

What is the definition of the coefficient of kinetic friction?

Maria and Carla were hiking when Maria tripped, fell, and sprained her ankle. Carla took out the first-aid kit and unwrapped a cold pack. Carla popped a vial that was inside the cold pack.

What instrument is used routinely to check a person's exposure to radiation?

describe the relationship that exists between amplitude of a wave and the amount of energy that the wave carries

Recognize the relationship between stiffness of the medium and the speed of a wave.