g Polaris, also called the North Star, is moving toward us. For a stationary source, the red hydrogen spectral line is at a wavelength of 656.279 nm. Due to the radial velocity of the star, the line is blue-shifted by 0.037 nm. At what wavelength will a scientist on Earth observe the shifted line

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight