A 10.0-kg box starts at rest and slides 3.90 m down a ramp inclined at an angle of 10° with the horizontal. If there is no friction between the ramp surface and crate, what is the velocity of the crate at the bottom of the ramp? (g = 9.8 m/s2)
a. 13.3 m/s
b. 3.64 m/s
c. 8.74 m/s
d. 8.68 m/s
e. 76.4 m/s
b
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What makes Neptune's moon Triton stand out from all the other large satellites in the Solar System?
a. originated as a comet b. the most geologically active c. the most reflective satellite d. largest satellite in the Solar System e. the only large satellite with a backward orbit
Analyze these generalizations about the eight planets in our solar system. Determine if they most likely apply to planets closer or farther away from the sun.
What is the net power that a person with surface area of 1.20 m2 radiates if his emissivity is 0.895, his skin temperature is 300 K, and he is in a room that is at a temperature of 290 K? The Stefan-Boltzmann constant is 5.67 x 10-8 W/(m2•K4)
A) 60.3 W B) 62.6 W C) 65.7 W D) 68.4 W E) 64.8 W
Mort weighs 700 newtons on Earth. He takes a low-orbit voyage in an Earth satellite. While in orbit his apparent weight [his feeling of weight] is
A) zero. B) a little less than 700 newtons. C) a little more than 700 newtons. D) just a few newtons. E) 700 newtons.