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3 years ago

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5. The volume of physical activity attained by an individual who exercises at a level of 7 METs for 35 min · day-1, 4 days · wk-

1 would be equal to ______ MET-min per week.
a. 140
b. 280
c. 560
d. 980

1 answer:

Airida [17]3 years ago

3 0

D. 980, this is the best answer because 35 x 7 is 980 :)

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The magnitude of work done by the gas is 279 J and the sign is negative so W = -279 J as work is done by the system.

<u>Explanation:</u>

According to first law of thermodynamics, the change in internal energy of the system is equal to the sum of the heat energy added or released from the system with the work done on or by the system. If the heat energy is added to the system to perform a certain work, then the heat energy is taken as positive, while it will be negative when the heat energy is released from the system.

Similarly, in this case, the heat energy of 597 J is added to the system. So the heat energy will be positive, while the gas expansion occurs means work is done by the system.

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3 years ago

I have no idea of how to approach this problem

nataly862011 [7]

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Explanation:

Well me know that v=m/s

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2 years ago

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Answer:

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Explanation:

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m g h = ½ I w²

The moment of inertia of a ruler that turns on one end is

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Let's replace

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In this case the point of interest a in strangers r = L

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3 years ago