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Papessa [141]
4 years ago
7

Q66 what the answer plz help me I don’t understand this:(

Physics
1 answer:
muminat4 years ago
5 0

Answer:

C

Explanation:

look at the question more carefully

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an object has a mass of 50kg, a final height of 20m and an initial height of 8m. what is the amount of work done
Andrei [34K]

amount of work done is 5880 J

Given:

mass of object = 50kg

Final height = 20m

initial height = 8m

To Find:

amount of work done

Solution:

work is done when a force acts upon an object to cause a displacement. You can calculate the energy transferred, or work done, by multiplying the force by the distance moved in the direction of the force.

The work done by gravity is given by the formula,

W = mgh

W = 50 x 9.8 x ( 20-8)

= 5880 J

So the work done is 5880 J

Learn more about Work done here:

brainly.com/question/25239010

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7 0
2 years ago
HI PLEASE HELP!
butalik [34]

Answer:

Chemical reactions occur slower at lower temperatures and faster at higher temperatures. When you put a glow stick in cold water, the chemical reaction slows down but will last for a longer period of time. When you put a glow stick in hot water, the reaction speeds up but will be over quicker.

Explanation:

(self-explanatory)

I hope this helps, have a nice day.

7 0
3 years ago
A single beam of light is shone into a glass containing milky water.
Bumek [7]

Answer:

the first one

Explanation:

3 0
3 years ago
A windmill is example of a <br>a.generator <br>b.resistor <br>c.insulator<br>d.motor
Alexandra [31]
The answer is a. generator!
4 0
3 years ago
3. How can the U.S. economy grow if we import more goods and services?
Naddik [55]

Answer:

A trade deficit therefore occurs when a country spends more on imports than it receives in exports. A budget deficit, in the context of the government, instead occurs when there is more federal spending than revenue taken in from taxes, duties, fines, and other fees.

Explanation:

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4 0
2 years ago
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