How much time would it take for he sound of the thunder to travel 2000 meters if sound travels a speed of 330 meters per sec

A sled of mass m is being pulled horizontally by a constant horizontal force of magnitude F. The coefficient of kinetic friction is mu_k. During time interval t, the sled moves a distance s, starting from rest.

Which describes how chemical changes are different from physical changes? Select one: a. Chemical changes can be measured, but physical changes cannot. b. Chemical changes involve the formation of a new substance. c.

The substance dinitrogen monoxide is a molecule with 3 atoms? options: true false

A tennis ball is thrown straight up with an initial speed of 22.5 m/s. It is caught at the maximum height of its arc. a. How high does the ball rise? 25.83 m b. How long does the ball remain in the air?

What kinds of bonds make up a formula unit of sodium chloride

A potter's wheel of radius 16 cm starts from rest and rotates with constant angular acceleration until at the end of 32 s it is moving with angular velocity of 10 rad/s. what is the angular acceleration? answer in units of rad/s 2.

The froghopper, Philaenus spumarius, holds the world record for insect jumps. When leaping at an angle of 58.0∘ above the horizontal, some of the tiny critters have reached a maximum height of 58.7 cm above the level ground.

Design an experiment (Fair Test) to find out what would be a good insulator for a dog house.

Which of these changes does a submarine encounter as it returns from the bottom of the ocean to the surface of the ocean? a. the amount of sunlight increases. b. the water temperature decreases. c. the amount of plants decreases. d.

Why do some elements have symbols that don't use letters in the element's name?