A 2.25 kg object is whirled in a vertical circle with a 0.89 m radius. The time of one revolution is 0.95s. Determine the tension of the string (assume uniform speed) a.) at the top, b.) at the bottom.

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

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g

An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to