Abasic observation of a star is how bright it appears. this brightness is known as the star's
a. luminosity.
b. absent magnitude.
c. apparent magnitude.
d. absolute magnitude.

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

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.