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laiz [17]
3 years ago
15

Cathy is moving into a tenth-floor apartment. She has a grand piano that weighs 570 pounds and is too big to fit in the elevator

or in the stairwell.
Which simple machines would make it easiest for Cathy to get her grand piano up to her new apartment?
A.
wheels and axles
B.
inclined planes
C.
screws
D.
pulleys
Physics
1 answer:
Kazeer [188]3 years ago
4 0

She will need pulleys. Nothing else will work

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zheka24 [161]

Answer:

efficiency of solar panel is 18%

Explanation:

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Answer:

Following are the answer to this question:

Explanation:

In option (a):

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In option (b):

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