Magnetic fields are produced either by electric currents or time-varying electric fields.

a. True

b. False

Alpha and beta particles and gamma rays are examples of: a. neutrons b. ionizing radiation c. isotopes d. atoms

Which description matches up correctly with each type of particle? Alpha - no mass and no charge; beta - mass of 4 and charge of + 2; gamma - charge of - 1 and mass of 0 Alpha - mass of 0 and charge of - 1; beta - mass of 4 and charge of + 2;

Low-frequency vertical oscillations are one possible cause of motion sickness, with 0.30 hz having the strongest effect. your boat is bobbing in place at just the right frequency to cause you the maximum discomfort.

Order the speed of sound through these materials from the slowest to the fastest. speed of sound in cold air speed of sound in hot molten lead speed of sound in warm air speed of sound in water

How do you determine true displacement value of an object that has moved?

Which of the following choices best represents a potential stressor?

How do you distinguish between speed, velocity, and acceleration?

The force of friction on a sliding object is 10n. the applied force needed to maintain a constant velocity is:

What is the best hypothesis to use for this investigation

Quantum physics would most likely be needed to understand the motion of which of the following? A. an atom B. a cell C. a ball D. a galaxy