When combing your hair, you scuff electrons from your hair onto the comb. is your hair then positively or negatively charged? how about the comb?

Matter waves A. can reflect, refract, diffract, and interfere like sound and light waves B. have amplitudes, wave speeds, wavelengths, and frequencies like sound and light waves C. indicate where the matter is likely to be found D.

Bills are introduced in the Senate by a. the Rules Committee. b. individual senators. c. investigative committees. d. the majority floor leader.

How can you separate a mixture of 10 grams of salt and 10 grams of sand?

Determine the period of a 1.7-m-long pendulum on the Moon, where the free-fall acceleration is 1.624 m/s2. Express your answer with the appropriate units.

When a current flows through a metal wire, the moving charges are When a current flows through a metal wire, the moving charges are 1. only electrons. 2. both protons and electrons. 3. positive metal ions. 4. only protons. 5. negative metal ions. 6.

Which of the following jobs does not require good swimming ability

An object has an emissivity of 0.725. At temperature T, it radicates heat at a rate of 10 W. What is its rate of heat radiation at temperature 2 T

Which of the following is an instance of persuasive speaking? a. a coach reviewing the offensive plays for next week's game b. a lawyer explaining the details of a plea bargaining agreement to her client. c.

What is needed to support life

What property indicates a star's temperature? A size B color C composition D brightness i forgot lol