suppose a yo-yo has a center shaft that has a 0.250 cm radius and that its string is being pulled. (a) If the string is stationary and the yo-yo accelerates away from it at a rate of 1.50 m/s2, then the angular acceleration of the yo-yo is Fill input: rad/s2. (b) The angular velocity after 0.750 s if it starts from rest is Fill input: rad/s. (c) The outside radius of the yo-yo is 3.50 cm. The tangential acceleration of a point on its edge is Fill input: m/s

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b

The necleus of an atom is made up of what subatomic particles?

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.