Wich is a scalar quantity

(1) velocity (2) speed (3) acceleration (4) displacement

The fiugure below shows a birds eye view of ta car going around a highway curve

Light is traveling in air at a speed of 300,000 km/s. Which substance would cause the light to refract the LEAST? A. ruby (speed of light = 170,000 km/s) B. glass (speed of light = 200,000 km/s) C. water (speed of light = 225,000 km/s) D.

Rutherford proposed that a. the atom is mostly solid space b. the electrons are spread through a solid, positive nucleus c. the electrons are located around a nucleus d. atoms are the smallest piece of matter

A 1000 kg car is moving south with a speed of 20 m/s. How fast would a 10 kg bowling ball have to travel in order to have the same momentum?

n a car lift used in a service station, compressed air exerts a force on a small piston that has a circular cross section of radius 5.00 cm. This pressure is transmitted by a liquid to a piston that has a radius of 15.

If an ant were scaled up to the size of an elephant, the ant would be

A 4.0 kg food pack was dropped from a height of 200 m by a helicopter during flood relief operations. At what velocity will the food pack be falling halfway to the ground?

The sun generates both mechanical and electromagnetic waves. Which statement about those waves is true? The mechanical waves reach Earth, while the electromagnetic waves do not.

A 3-kg mass is in free fall. What is the velocity of the mass after 7 seconds?

How does the role of blood protect the body