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eimsori [14]
4 years ago
11

How much work is done on a 10 N block that is lifted 5 meters off the ground by a pulley?

Physics
1 answer:
Anestetic [448]4 years ago
5 0

Work = (Force) * (Displacement). Force = 10 newtons Distance or Displacement 5 meters. Therefore,the Work done = (10 newtons * 5 meters) = 50 joules. The Answer is 50 Joules of Force

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A guy wire 1034 feet long is attached to the top of a tower. When pulled taut, it touches level ground 699 feet from the base of
kolezko [41]

Answer:

80.386 degrees

Explanation:

We use the cosine equation here (which is the adjacent side of the unknown angle divided by the hypotenuse

The adjacent side = 699ft

The hypotenuse = 1034ft

using cos∅ = Adjacent/hypotenuse

where ∅ is the unknown angle

cos ∅ = 699/1034 = 0.167

∅ = arccos 0.167 = 80.368°

As easy as one can imagine

8 0
3 years ago
Water in a metal pot is heated over a campfire. Primarily, by wat means of energy transfer is thermal energy moved from the fire
Art [367]

when water in a metal pot is heated over a campfire. Primarily, by means of convection energy transfer is thermal energy moved from the fire to the bottom of the pot

<h3 /><h3>What is thermal energy?</h3>

It can be defined as the form of the energy in which heat is transferred from one body to another body due to their molecular movements, thermal energy is also known as heat energy.

Thermal energy can flow by different means such as conduction, convection, and radiation.

As given in the problem when water in a metal pot is heated over a campfire. The energy we receive around the campfire is mostly due to the effect of the radiation of the heat but the Primary means of energy transfer is thermal energy moved from the fire to the bottom of the pot because of the convection.

Thus, when water is heated in a metal pot over a campfire. Thermal energy is primarily transferred from the fire to the bottom of the pot through convection.

Learn more about thermal energy from here

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7 0
2 years ago
What two processes practiced by scientists increase the likelihood of a successful outcome in science?
Amanda [17]

Answer:

ULTIMATE CORRECT ANSWER

collaboration and communication

Explanation:

5 0
3 years ago
Which image illustrates refraction
photoshop1234 [79]

Answer:

it loaded and it is C. buddy sorry about that :)

4 0
4 years ago
Read 2 more answers
Which of the following is something that can cause land pollution?
Tasya [4]

Ok, condensation is part of the water cycle. Acid rain comes from acidic air pollution.  Burning fossil fuels is a green house gas that contributes global warming. I'd have to go with B.

8 0
3 years ago
Read 2 more answers
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