An object with a mass of 10 kg is moving along a horizontal surface. At a certain point it has a speed of 28 m/s
If the coefficient of friction between the object and the surface is 0.40, how far will the object go before it comes to a stop? Use g = 10 m/s2.
A) 98 cm
B) 61 m
C) 98 m
D) 23 m
E) 61 cm
C
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Clusters of galaxies are distributed in space ____
a. homogenously b. isotropically c. in long, narrow filaments surrounding empty voids d. statically e. in bubbles surrounded by empty walls
You are once again in a hot, dense place. You are surrounded by protons and neutrons, some rapidly fusing into helium. You notice that your surroundings are cooling (good, because it's really hot!) and rapidly dropping in density
Within about 3 minutes, the fusion reactions stop. Where are you? A) You are in the center of a star very much like our Sun. B) You are in the early universe during the era of nucleosynthesis. C) You are inside a nuclear power plant on Earth. D) You are in the center of a star much smaller than the Sun. E) You are in the center of a massive star near the end of its life.
Remanent magnetism in rocks is due to the
presence of a)sodium chloride. b)magnetite. c)calcium deposits. d)zinc-bearing particles.
A circular loop of radius 0.10 m is rotating in a uniform magnetic field of 0.20 T. Find the magnetic flux through the loop when the plane of the loop and the magnetic field vector are perpendicular
A) zero B) 3.1 × 10-3 T?m2 C) 5.5 × 10-3 T?m2 D) 6.3 × 10-3 T?m2 E) 9.2 × 10-3 T?m2