An electric current that is varied to represent information is a (n)

a. electronic signal.

b. digital signal.

c. integrated circuit.

d. electromagnetic wave.

Are cell phones scientific

A water skier is pulled by a boat traveling with a constant velocity. Which one of the following statements is false concerning this situation? A. The net vertical force on the skier is zero newtons. B. The net acceleration of the skier is zero m/s2.

Air containing 20.0 mole% water vapor at an initial pressure of 1 atm absolute is cooled in a 1-liter sealed vessel from 200°C to 15°C.

What force must the people overcome in order to lift the rock? (rock on one end and two guys on the other end)

The convergence of two continental plates would produce

Of the waves listed, the one with the longest wavelength is a (n) a. X ray. b. radio wave. c. microwave. d. visible light wave.

What does it mean to dissolve something

What property makes copper easier to shape than stone? It is hard. It is strong. It is tough. It is malleable.

What is the voltage at the location of a 0.0001-coulomb charge that has an electric potential energy of 0.5 joules?

Describing Acceleration Which statements describe acceleration? Check all that apply. Negative acceleration occurs when an object slows down in the positive direction.