A toaster uses 400 W of power. How much energy does it use in 5 seconds? A. 2000 J B. 1000 J C. 80 J D. 400 J

The speed of sound in air is 331 m/s. what is the plane's speed in terms of the speed of sound?

A cannon ball is fired directly upward with a velocity of 160 m/s. How long does it take to fall back to the ground? s How fast is it going when it hits the ground? m/s

The wavelength on a longitude wave is

If you feel you are about to have a collision you should?

Why does a light go out when you turn off the wall switch? -The switch absorbs the electrical energy. -The switch changes the direction of the flow of electrons. -The switch changes the circuit from series to parallel.

How do repeater stations improve the quality of a broadcast?

What is the total number of atoms in the following formula? CaBr2 04

The Amazon River is in Europe. True or False

A microwave oven operating at 120 volts is used to heat a sandwich if the oven draws 12.5 amperes of current for 45 seconds what is the power dissipated by the oven?

Which of the transformers are step-up transformers? Which of the transformers are step-down transformers?