Lab Questions: SHOW ALL WORK Use correct units & Circle the answer You rotate 200 g of water on a 0.5 m string. You make 20 revolutions in 22 seconds. (The cup makes a vertical circle and you rotate it so that the water barely stays in the cup) At the top of the vertical circle, the weight of the water equals the centripetal force. Assuming the mass of the cup and string are negligible, find the following: 1. frequency 22 1. / sec 20 2. period 3. circumference of the circle (i.e. the circle's distance) 200 +0.5 ROM 20 4. centripetal force (= weight) 2TC ( 20 ) 200 5. (linear) velocity of the cup 271 ( 0. 5 ) 22 6. If you shorten the radius, what happens to the frequency and period? (Assume everything else is the same.) All of the mean ( ?! ) will decrease. 7. If you shorten the radius, what happens to the velocity of the object? (Assume everything else is the same.) stays the sampe. 8. Assuming everything else is the same, if you double the mass of the water, what happens to the velocity of the object? Using equations, show evidence for your claim. stays the some