A 1.8 kg solid disk pulley of radius 0.11 m rotates about an axis through its center. (a) What is its moment of inertia? (b) Starting from rest, a torque of 0.22 m-N will produce what angular acceleration?
What will be an ideal response?
(a) 1.1 × 10-2 kg ? m2
(b) 20. rad/s2
Physics & Space Science
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What will be an ideal response?
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In drinking soda or water through a straw, we make use of
A) capillary action. B) surface tension. C) atmospheric pressure. D) Bernoulli's principle. E) none of the above
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Earth's atmosphere gets most of its heat from the
A) Sun. B) Earth's core. C) both of these D) neither of these
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A fish is 80 cm below the surface of a pond. What is the apparent depth (in cm) when viewed from a position almost directly above the fish? (For water, n = 1.33.)
a. 50 b. 60 c. 40 d. 70 e. 110
Physics & Space Science