11. How much time does it take for a bird flying at a

speed of 54 km/h to travel a distance of 1,080

kilometers?

a. 30 km/h

b. 30 h

c. 20 km/h

d. 20 h

What is the best description of the acceleration of an object?

The electrons in a particle beam each have a kinetic energy K. What is the magnitude of the electric field that will stop these electrons in a distance d?

A high-voltage transmission line carries 756 A at 488 kV for a distance of 169 km. If the resistance in the wire is 0.248 Ω/km, how much power is dissipated due to resistive losses? Answer in units of W.

An asteroid flies close to the earth. gravity does what? A. repels the asteroid away from the earth. B. attracts the asteroid and the earth to each other. C. makes the asteroid spin rapidly. D. causes the asteroid to explode.

How much charge has been transferred from the negative to the positive terminal?

What is energy? (Not the answer from google search.)

Explain why the friction force between two surfaces increases if the force is pushing the surfaces together increases.

As energy moves in waves through the water, the water moves a. in waves toward shore. c. in the direction of the waves. b. in a small circular movement. d. against the current.

Which of the following values represents an index of refraction of an actual material? A. 0 B. 1 / 4 C. 5 / 4 D. 1 / 2

Which statement best describes the effect of scientific advances on society? A. They always have a positive impact on society. B. They are inspired by the needs of society. C. they do not affect society beyond the community level. D.