If the odometer on the car reads 25.0 km at the beginning of a trip and 65.0 km a half hour later, what is the average speed of the car? (Remember significant digits.)

The Solar System formed from the ... A. Collapse of an interstellar cloud B. Collision of two massive stars C. Explosion of an interstellar sun D. Grouping together of asteroids

Is it possible for a car to be accelerating to the west while it is driving to the east? Either explain why it is not possible, or explain how you would do it.

Which law states, "an induced emf gives rise to a current whose magnetic field opposes the change in magnetic flux that produced it."?

What is the speed vf of the package when it hits the ground?

Which type of electromagnetic radiation is useful in communications technology

In an energy pyramid, the total energy available for consumption from one trophic level to the next one it is A. reduced B. Conserved C. multiplied D. Evenly distributed

Astronauts in orbit are not truly weightless.

Which of the following statements is true regarding the nature of light? Straight line motion is a particle property of light. Straight line motion is a wave property of light. Straight line motion is not a property of light.

A particle that is composed of two up quarks and one down quark is a (1) meson (3) proton (2) neutron (4) positron

Car headlights have both low beams and high beams. The high beams may be necessary when it is very dark outside. If the power for the high beam is 60.0 watts and the current is 5.0 amps, how much voltage is required?