The earth has a magnetic field much like a bar magnet. Explain this statement.

When you drop a strong magnet through the center of a copper pipe, the magnet (A) descends slowly because its motion causes currents to flow in the pipe and those currents repel the magnet.

Which example best illustrates a change from elastic potential energy to kinetic energy? A cook kneads bread dough, then pours it into a pan. A trampoline sags as a rock is gently lowered onto it.

A capacitor of 20.0 μ F and a resistor of 90.0 Ω are quickly connected in series to a battery of 8.00 V. What is the charge Q on the capacitor 0.00200 s after the connection is made? Q =

Which states of matter have particles that live independently of one another with very little attraction

Which would hit the ground first if dropped from the same height in a vacuum-a feather or a metal bolt?

A bag of potatoes has a mass of 2.5 kg. What is its approximate weight on Earth?

A rock climber is 200m above ground and has a GPE of 117,600 J. What is the rock climber's mass

If the photon scatters in the backward direction, what is the magnitude of the linear momentum of the electron just after the collision with the photon

A car speeds up from 15 m/s to 30 m/s in 12 seconds. What is the acceleration of the car?

These examples include learned and innate behavioral adaptations of animals. Which statement describes a learned behavioral adaptation of an animal? A. Your knee j e r k s when it is hit by a doctor. B. A dog shakes water from its fur. C.