Assume that typographical errors committed by a typesetter occur completely randomly. suppose that a book of 600 pages contains 600 such errors. using the poisson distribution, calculate the probability (a) that page 1 contains no errors (b) that page 1 contains at least three errors

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?

Ain is , is 's of ? 0.62 0.79 1.27 1.50

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.