Physics, 03.11.2020 06:10 spoo262005
2. A firefighter feels the hose pushing backwards onto him as he uses it to put out a fire. What is the most likely
cause of this?
A. The hose material is very elastic.
B. Since the hose is at rest, it tends to stay at rest.
C. The force exerted on the water equals the mass of the water times its acceleration
D. The escaping water exerts an equal and opposite force on the hose.
Answers: 1
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Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?
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Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?
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2. A firefighter feels the hose pushing backwards onto him as he uses it to put out a fire. What is...
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