A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00
acquires an angular velocity of 5.00 rad/sec. The CD continues rotating at 5.00 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration. What is the angular distance traveled by a point 4.00 cm from the center, at the time 10.0 seconds from the start?
A. 20.8 radians
B. 26.3 radians
C. 37.5 radians
D. 41.6 radians
E. 47.3 radians
C. 37.5 radians
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Estimate the rate of evaporation of acetone into 75ºF air from an open 4-inch-diameter by 8-inch-tall jar when the liquid acetone is 2 inches deep at the bottom of the jar and fresh air passes over the top of the jar.
What will be an ideal response?
A concave mirror will produce
a. only inverted images. b. real or virtual images. c. only virtual images. d. only real images.
The Phanerozoic eon and the Paleozoic era began about ______________ million years ago
Fill in the blank(s) with correct word
A silicon monoxide thin film (n = 1.45) of thickness 77.6 nm is applied to a camera lens made of glass (n = 1.55). This will result in a destructive interference for reflected light of what wavelength?
a. 720 nm c. 450 nm b. 558 nm d. 522 nm