Hector drives a pickup truck horizontally at 9.00 m/s. He is transporting a crate of delicate lead crystal. If the coefficient of static friction between the crate and the truck bed is 0.740, what is the minimum stopping distance for the truck so the crate will not slide?
a. 5.58 m
b. 6.66 m
c. 81.0 m
d. 15.6 m
e. 2.79 m
a
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One of the curators at the art museum is tilting a large cylinder backward. At what angle ? will the cylinder of height h and radius r be in unstable equilibrium?
A.
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.E.
.A supertanker filled with oil has a total mass of 6.1 × 10^8 kg. If the dimensions of the ship are those of a rectangular box 300 meters long, 80 meters wide, and 40 meters high, determine how far the bottom of the ship is below sea level. (rsea = 1 020 kg/m3.)
a. 10 m b. 15 m c. 20 m d. 25 m e. 30 m
Which of the following is true of the Sun?
A) It is a self-luminous body of hot gas. B) It is the first planet of the Solar System. C) It shines by reflecting light from the Moon. D) It is the biggest star in the Universe.
In a resonating pipe that is open at one end and closed at the other end, there
A) are displacement nodes at each end. B) are displacement antinodes at each end. C) is a displacement node at the open end and a displacement antinode at the closed end. D) is a displacement node at the closed end and a displacement antinode at the open end.