Abeam of light has a wavelength of 650 nm in vacuum. (a) what is the speed of this light in a liquid whose index of refraction at this wavelength is 1.47? (b) what is the wavelength of these waves in the liquid?

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.