Physics, 03.12.2019 21:31 playboyG80
Atypical meteor that hits the earth's upper atmosphere has a mass of only 2.5 g, about the same as a penny, but it is moving at an impressive 40 km/s. as the meteor slows, the resulting thermal energy makes a glowing streak across the sky, a shooting star. the small mass packs a surprising punch.
at what speed would a 900 kg compact car need to move to have the same kinetic energy?
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Physics, 21.06.2019 14:30
Apositive point charge q is fixed on a very large horizontal frictionless tabletop. a second positive point charge q is released from rest near the stationary charge and is free to move. which statement best describes the motion of q after it is released? assume q stays on the table
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Physics, 23.06.2019 03:00
A75-hp (shaft output) motor that has an efficiency of 91.0 percent is worn out and is to be replaced by a high-efficiency motor that has an efficiency of 95.4 percent. the motor operates 4368 hours a year at a load factor of 0.75. taking the cost of electricity to be $0.12/kwh, determine the amount of energy and money saved as a result of installing the high-efficiency motor instead of the standard motor. also, determine the simple payback period if the pu
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Physics, 23.06.2019 05:30
Which of the following best describes the shape of earth's orbit? a.ellipticalb.circularc.spirald.figure eight
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Physics, 23.06.2019 06:30
What is a possible explanation for a set of facts that can be tested by further investigations called
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Atypical meteor that hits the earth's upper atmosphere has a mass of only 2.5 g, about the same as a...
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