Buoyancy: If a ship has a mass of 10 million kilograms, what volume of fresh water must it displace in order to float? The density of water is 1000 kg/m3.
A. 1010 m3
B. 1012 m3
C. 104 m3
D. 107 m3
E. 108 m3
Answer: C
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The ______________ surrounds the nucleus of a comet
Fill in the blank(s) with correct word
Sally, who weighs 450 N, stands on a skate board while Roger pushes it forward 13.0 m at constant velocity on a level straight street. He applies a constant 100 N force
a. The work Roger does on the skateboard is 0 J. b. The work Roger does on the skateboard is 1 300 J. c. The work Sally does on the skateboard is 1 300 J. d. The work Sally does on the skateboard is 5 850 J. e. The work Roger does on the skateboard is 5 850 J.
A material that requires time to fully recover strain after the stress is reduced to 0 is _____________.
Fill in the blank(s) with the appropriate word(s).
Suppose a car has a 100,000 mile 10 year warranty on the wheels and axles of a car. How may turns will the wheels of 0.80-m diameter make if both the mileage and time warranties run out simultaneously and what will be the average angular velocities of the wheel? Assume that a mile = m and that a year is s.