Physics, 30.12.2019 22:31 cheetah810
Imagine that asteroid a that has an escape velocity of 50 m/s. if asteroid b has twice the mass and twice the radius, it would have an escape velocity the escape velocity of asteroid a.
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Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering
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In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm
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Relative to the ground below, how many joules of potential energy does a 1000-kg boulder have at the top of a 5-m ledge?
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The researcher who studied the ability of cats to learn to escape from puzzle boxes was
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Imagine that asteroid a that has an escape velocity of 50 m/s. if asteroid b has twice the mass and...
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