Which of the options is the best definition of a vector?

A. a specific type of imaginary number

B. a quantity with both magnitude and direction

C. a magnitude described as a number

D. the magnitude of a value

In order for an object to have kinetic energy it must have a mass and a?

At the maximum rate of power generation, a small hydroelectric power plant takes a discharge of 16.2 m3/s through an elevation drop of 61 m. The head loss through the intakes, penstock, and outlet works is 5.8 m.

Bud, a very large man of mass 130 kg, stands on a pogo stick. How much work is done as Bud compresses the spring of the pogo stick 0.050 m?

What happens in this circuit if one of the light bulbs is unscrewed?

A car accelerates at 4 m/s2 for 5 seconds. the direction of its acceleration is due east (east = positive direction). if its initial velocity was 7 m/s, also due east, what is its final velocity? round your answer to the nearest meter per second.

An airplane started at a distance of 20 km from Chicago and flew directly away from it. 10 minutes later, the airplane was 55 km from Chicago. If dis the distance of the airplane from Chicago, what is Ad? A. 10 km B. 55 km C. 35 km D. 20 km

An alpha particle travels at a velocity of magnitude 550 m/s through a uniform magnetic field of magnitude 0.045T. (An alpha particle has a charge of charge of + 3.2 x 10-19 C and a mass 6.

A woman tries to put lipstick in the car. She has to come to a fast stop, and the lipstick falls to the floor and rolls forward, under the brake pedal. She dies. Why does this happen?

The slope of the line on any speed vs time graph is equal to the objects?

True or False? a globular cluster is a group of older stars that are clustered together.