A microscope is an instrument that makes distant objects look larger.

1. A wave travelling on a string has a wavelength of 0.10 m and a frequency of 7 Hz. Calculate the speed of the wave

How much force is needed to stop an 80-kg football player if he decelerates at 5 m/s2? 5 N 16 N 20 N 400 N

Which statements describe sedimentary rock? Check all that apply.

Electric flux can be understood as the number of electric field lines passing through a surface. a. True b. False

Two similar sized stones, one heavy and one light, are dropped from the same height into a pond. Explain why the impact of the heavy stone would produce waves with higher amplitude than the impact of the light done would.

If a fully loaded shopping cart has a head-on collision with an empty cart both moving at the same speed toward each other, which cart experiences the greater force? The greater impulse? The greater change in momentum? The greater acceleration?

Why didn't early Portuguese and Dutch explorers decide to create settlements in Australia

How do the electrons in the bulb's filament, far from the battery and its emf, "know" that they should flow?

What occurs when an unstable atomic nucleus changes into other nuclei by emitting particles and energy

Can a simple machine's efficiency ever be greater than 100%? Explain your answer.