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VARVARA [1.3K]
2 years ago
10

what is the mechanical advantage of a machine that uses an input force of 20 newtons to achieve an output force of 60 newtons

Physics
1 answer:
inn [45]2 years ago
4 0
The answer to your question will be 3.

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What is the mass of metal if it has a density of 12.459 hg/cm^3 and displaces 28.7cm^3 of water ​
natima [27]

Answer:

357.6g

Explanation:

Given parameters:

Density  = 12.459g/cm³

Volume of metal  = 28.7cm³

Unknown:

Mass of metal = ?

Solution:

The density of a substance is its mass per unit volume.

To find the mass;

     Mass of metal  = density x volume

Now insert the parameters and solve;

    Mass of metal  = 12.459 x 28.7  = 357.6g

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3 years ago
What force is needed to accelerate 300kg rock as a rste of 4m/s​
Natali [406]

Answer:

60 maybe

Explanation:

4 0
3 years ago
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Mixed powders may be categorized as​
Nastasia [14]

Answer:

<u><em>on  flow properties and free-flowing and cohesive. </em></u>

Explanation:

the power Free flowing powders do not cling together, as cohesive powders stick to each other and form that do not disperse well during mixing

6 0
3 years ago
Which statement is true about the atom?
slavikrds [6]

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Its d

atome contain

negative electrons,

positive protons and uncharged neutrons.

Explanation:

7 0
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Which term is defined as the change in the direction of light when it goes from one medium into a different medium?
Vaselesa [24]
Refraction is the term  

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