Which statement is true?

a. Velocity and speed both have units of m/s.

b. Velocity is a scalar, while speed is a vector.

c. Velocity has a magnitude, but speed does not.

d. Speed always includes a direction as well as a magnitude.

A piece of fruit is hanging from a tree what energy is being used

Which factors that affect the Florida peninsula can result from human activity? A. the formation of sand dunes and springs B. the formation of springs and drilling of artesian wells C. the intrusion of salt water and formation of sand dunes D.

A barium atom loses two electrons what charge does it have

A tow truck exerts a force of 4000 N on a car accelerating it at 4 m/s what is the mass of the car?

small car has a head-on collision with a large truck. Which of the following statements concerning the magnitude of the average force due to the collision is correct? A small car has a head-on collision with a large truck.

A submarine that is in the sea what principle is that

1. It takes 26.5 N to pull a 72 kg sled across snow. What is the coefficient of friction? 2. A 565 N rightward force pulls a large box across the floor with a constant velocity of 0.75 m/s. If the coefficient of friction is 0.

A person holds onto an object for 2 minutes, but doesn't move the object. Is work done on the object?

Which two vectors add together to give a resultant with the smallest magnitude, and which two vectors add to give a resultant with the largest magnitude? in each case specify the magnitude and direction of the resultant?

The largest velocity reached by a falling object is its