A machine is device that____.

1 answer:

6 0

A machine, a simple machine, to be specific is a device that changes either the magnitude or direction of force. It uses mechanical advantage to multiply force. Simple machines transform energy into work.

The answer would then be letter A.

There are six simple machines, which are pulley, lever, inclined plane, wheel and axle, screw and wedge. The answer is inclined plane as listed above. the other choices are complex machines that are simple machines combined.

The answer would then be B.

A screw is a simple machine which is a modified version of an inclined plane. It is an inclined plane that circles around a central point. Another one would be the wedge. The wedge is an inclined plane that is moved using something else like an axe.

The answer is then A.

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Perform the following mathematical operation and report answer to the correct number of significant figures 143.6 divided by 21.

Svetllana [295]

The answer to the correct number of significant figures is 6.774.

<h3>What is quotient?</h3>

When a number(big) divided smaller number, the answer obtained greater than zero is called a quotient.

Divide 143.6 ÷ 21.2

143.6/21.2 = 1436/212

=6.77358

The quotient is rounded to three significant figures after decimal

143.6 ÷ 21.2 = 6.774

Thus, the answer to the correct number of significant figures is 6.774

Learn more about quotient

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1 year ago

A man is standing on the shore of a beach, up to his knees in water. Every second two waves hit him. What is the frequency of th

laila [671]

Answer:

f = 2 Hz

Explanation:

The frequency of a wave is defined as the no. of waves passing per unit of time. Therefore, the frequency of a wave can be calculated by the following formula:

$f = \frac{n}{t}$

where,

f = frequency of the wave = ?

t = time passed = 1 s

n = no. of waves passing in time t = 2

Therefore,

$f = \frac{2}{1\ s}$

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2 years ago

One of the leading causes of permanent damage leading to hearing impairment is _____.

Maslowich

One of the leading causes of hearing impairment that's due to damage
of the ear machinery is prolonged exposure to loud noise or loud music,
which damage the tiny hair cells that stimulate nerve endings in the inner ear.
Trust me.

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2 years ago

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In April 1974, Steve Prefontaine completed a 10 km race in a time of 27 min, 43.6 s. Suppose "Pre" was at the 8.13 km mark at a

SOVA2 [1]

Answer: $0.084 m/s^2$