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Olegator [25]
3 years ago
10

Ignore friction. A 20. Lb. Object was lifted to a height of 10 feet by a force of 30. Lb. (a) How much work (ft.Lb) is done by t

he force? (b) Find the change in potential energy (ft.Lb) of the object
Physics
1 answer:
Anton [14]3 years ago
4 0
A)
W = Fd
W = (30Lb)(10 ft)
W = 300ft.Lb

b)
work-energy theorem: W = ∆E
∆E = 300ft.Lb
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it is about 384,750 kilometers from earth to the moon. it took the apollo astronauts about 2 days and 19.5 hours to fly to the m
Jet001 [13]
We know, speed = Distance / Time
d = 384,750 Km
t = 2 days, 19.5 hours = 48+19.5 = 67.5 hour

Substitute their values, 
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In short, Your Answer would be 5700 Km/h

Hope this helps!
7 0
3 years ago
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Can someone help me?!!!!!
SOVA2 [1]

Answer:magnitude -5; angle 160°

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lina2011 [118]

Answer:

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200 kW of solar radiation is shining on a 300 m^2 parking lot. What is the insulation on the parking lot?
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That's "<em><u>insolation</u></em>" ... not "insulation".

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Wait ! 
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Wait again !
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I feel better now, and plus, I learned something.


7 0
3 years ago
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