What are the frequencies of EM spectrum

Which statements describe intensity? Check all that apply. Intensity is the amount of energy that flows in an area per unit of time. Intensity is the number of wavelengths that flow in an area per unit of time.

Moving a magnet inside a coil of wire will induce a voltage in the coil. How can the voltage in the coil be increased? A. Hold the magnet stationary. B. Move the coil of wire slowly, and keep the magnet stationary. C.

You throw a ball downward from a window at a speed of 2.0 m/s. How fast will it be moving when it hits the sidewalk 2.5 m below?

It is a blistering-hot day at the beach. You look at your portable thermometer, which it says it is 35. C. What is the temperature in Fahrenheit and Kelvin? Show the equations you use to make these conversions.

All objects near the earths surface - regardless of size and weight - hhave the same force of gravityvacting on them. A. True B. False

Why is it easier to read black text on a white background than to read green text of any light color?

If object A has more mass than object B, does object A contain more matter? Explain.

Describe a beach that was near stormy seas and powerful waves

We all depend on electricity. Most electricity is created by electromagnetic generators at large power plants and distributed through an electric grid.

A rock with mass m = 4.00 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 17.