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Vilka [71]
3 years ago
9

An 880n box is pushed across a level floor for a distance of 5.0m with a force of 440n. how much work was done on the box

Physics
2 answers:
Simora [160]3 years ago
8 0
W=Fd, F=440N, d=5m. 5x440=2,200J of work
Lunna [17]3 years ago
5 0

Answer: W = 2,200 joules

Explanation: Work is defined as a motion caused by a force, and can be calculated as:

W = F*d

where F is the force applied and d is the distance moved, here F = 440n and d = 5.0m

(the mass of the box does not matter in this case, where there are no friction and the movement is only in the perpendicular axis with respect at the direction in wich the weight pushes)

So the total work is:

w = 5.0m*440N = 2,200j

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Nutka1998 [239]

All of the rivers in the United States are not monitored closely for pollution levels.

The statement in the question is False

<h3><u>Explanation:</u></h3>

Not all rivers in the United States are closely monitored for their pollution levels. There are volunteers who take responsibility of checking water bodies such as lakes, rivers, streams etc. They take the next step required after finding a water body contaminated.

But to say that all the rivers receive the same amount of attention and action is incorrect. To ensure that all the rivers are clean and pollution free, it would require a lot of man power in the said department which would collect the water samples from all these rivers and send it to labs for checking the pollution level of the particular river. It can be said that the rivers which are situated beside an industrial site, close to a town, will be the priority for checking pollution levels as it would directly cause harm to a small set of population if the toxicity is at an increased level.

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3 years ago
Convert 5.6kg to grams
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Answer:

my pleasure

Explanation:

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4 0
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En un experimento de calorimetría, 0.50 kg de un metal a 100°C se añaden a 0.50 kg de agua a 20°C en un vaso de calorímetro de a
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Answer:

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A.

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B.

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I hope this is useful for you

A.

2) El calor específico será igual porque es una propiedad de la sustancia y no depende del medio.

B.

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