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3 years ago

Which of the following is NOT a way that machines provide a mechanical advantage?

2 answers:

4 0

The following choice that is NOT a way that machines provides a mechanical advantage is to change direction. The correct answer is A.

Mumz [18]3 years ago

4 0

i just took the test, A is incorrect.

im guessing its C, but not certain

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True or False?

olga nikolaevna [1]

Answer:

False

Explanation:

It is better to be logical when proving a point

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2 years ago

Can someone help my with my Physics lab pleaseeeee

den301095 [7]

Answer:

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Explanation:

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3 years ago

What is specific heat capacity

finlep [7]

It is the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).

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3 years ago

Why does the number of dwarf planets recognized by astronomers in the solar system sometimes increase?

gregori [183]

Because sometimes it happens that they discover a dwarf planet
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3 years ago

Spiderman, whose mass is 74.0 kg, is dangling on the free end of a 11.0-m-long rope, the other end of which is fixed to a tree l

Anestetic [448]

Answer:

W = -1844.513 J

Explanation:

GIVEN DATA:

mass of spider man is m 74 kg

vertical displacement if spider is 11 m

final displacement = 11 cos 60.6 = - 6.753 m

change in displacement is = -6.753 - (-11) = 4.25 m

gravity force act on spiderman is f = mg = 74 × 9.8 = 725.2 N

work done by gravity is $W = F \delta r cos\theta$

$W = 725.2 \times 4.25 \times cos 180$

where 180 is the angle between spiderman weight and displacement

W = -1844.513 J

7 0

2 years ago