Question

Qn:24

the centrifuge complete after being turned off? onts did great stand amor I. late 0 s 23...The Slowing Earth The Earth's rate of rotation is stantly decreasing, causing the day to increase in durati the year 2006 the Earth took about 0.840 s longer to c 365 revolutions than it did in the year 1906. What was con- ion. In omp the aver- age angular acceleration of the Earth during this time? Give ar your answer in rad/s2 24· .. IP A compact disk (CD) speeds up uniformly from rest to 310 rpm in 3.3 s. (a) Describe a strategy that allows you to cal- culate the number of revolutions the CD makes in this time. (b) 30. T gen Use your strategy to find the number of revolutions. 25.. When a carpenter shuts off his circular saw, the 10.0-inch- diameter blade slows from 4440 rpm to 0.00 rpm in 2.50 s. (a) What is the angular acceleration of the blade? (b) What is the distance traveled by a point on the rim of the blade during the deceleration? (c) What is the magnitude of the net displacement 31. T tua Chi fro eve of e of a point on the rim of the blade during the deceleration?

Answer 1

かhoe taken te 3-3 ラーニ 32.463-o 3, 3 32. У 632 21 9、8321 足