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3 years ago

Select all that apply.

Physics

2 answers:

murzikaleks [220]3 years ago

8 0

D multiply force

Have a wonderful day !

Deffense [45]3 years ago

8 0

Answer:

Multiply force

Explanation:

Simple machines are used to multiply machines. There are several types of simple machines. For example : lever, pulley, wedge, screw etc.

A machine is used to increase the output force by doing small amount of output. The ratio of output force to the input force is called the mechanical advantage of a machine.

Hence, the correct option is (4) " multiply force ".

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2 years ago

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When did Pangaea begin to break apart?

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Answer:

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Well according to scientific data and analysis, it started to break up about 175 - 200 million years ago!!

Explanation:

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3 years ago

Two hypothetical discoveries in Part A deal with moons that, like Earth's moon, are relatively large compared to their planets.

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Answer:

Explanation:

Solution:

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2 years ago

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nekit [7.7K]

Answer:

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2 years ago

A 35 kg child goes down a playground that is inclined at an angle of 27.5 degrees above the horizontal. Find the acceleration if

tigry1 [53]

Answer:

4.16m/s²

Explanation:

According to Newtons second law;

$\sum Fx = ma_x\\Fm - Ff = ma_x\\W sin\theta - \mu R cos \theta = ma_x\\mg sin\theta - \mu mg cos\theta = ma_x\\$

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$\mu$ is the coefficient of kinetic friction between the child and the slide

m is the mass

g is the acceleration due to gravity

a is the acceleration of the child

Substitute the given values and get the acceleration as shown;

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145.49 = 35a

a = 145.49/35

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2 years ago