a distant quasar shows a large redhisft -- one so large , in fact, that the features we now see in the visible light region of the spectrum would be invisible to us, were it not for the redshift. What band of the electromagnetic spectrum were these features most likely in, before the spectrumw as redshifted

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

How many neutrons does plutonium -196 with an atomic number of 78.