You carry a 20 N box 5 m horizontally across a room. The work you do is 100 N-m
Indicate whether the statement is true or false
F
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The age of the solar system is believed to be approximately 4.6 billion years based on the data from
a. samples of lunar rocks. b. samples of Earth rocks. c. samples of meteorites. d. all of the above e. none of the above
This graph shows the frequency of impacts on Earth by objects of various sizes. According to this graph, objects large enough to cause a mass extinction hit Earth
A) about once every 50 million years. B) about once every 1,000 years. C) about once in Earth's history. D) about once every 500 million years.
The linear momentum of a truck will be greater than that of a bus if
a. the truck's mass is larger than the bus's but its speed is the same. b. the truck's speed is larger than the bus's but its mass is the same. c. the truck's mass and speed are both larger than the bus's. d. any of the above.
A 83 g steel ball is released from rest and falls vertically onto a steel plate. The ball strikes the plate and is in contact with it for 0.5 ms. The ball rebounds elastically, and returns to its original height
The time interval for a round trip is 4.00 s. In this situation, assume the plate does not deform during contact. The maximum elastic energy stored by the ball is closest to: A) 16 J B) 24 J C) 32 J D) 48 J E) 64 J