Physics, 26.10.2019 04:43 kerarucker12pe384k
Freight car a with a gross weight of 200,000 lbs is moving along the horizontal track in a switching yard at 4 mi/hr. freight car b with a gross weight of 100,000 lbs and moving at 6 mi/hr overtakes car a and is coupled to it. determine: (a) the common velocity v of the two cars as they move together after being coupled, and (b) the loss of energy |de| due to the impact.
Answers: 2
Physics, 22.06.2019 01:00
An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10
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Physics, 22.06.2019 07:50
Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?
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The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d
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Freight car a with a gross weight of 200,000 lbs is moving along the horizontal track in a switching...
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