Awashing machine drum 90.0 cm in diameter starts from rest and achieves 1200.0 rev/min in 24.0 s. assume the acceleration of the drum is constant. 1) calculate the magnitude of the net acceleration of a point on the drum after 1.00 s has elapsed. (express your answer to three significant figures.)

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference