A constant force of 10 N is applied to a massive pulley that is a solid cylinder. The pulley has a radius of 20 cm and accelerates from rest to an angular speed of 40 rad/s in 5 s. Determine the moment of inertia of the pulley.

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90