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Nady [450]
3 years ago
9

The left side of the lever was forced down 10 inches in order to raise the rock 7 inches. The ideal mechanical advantage is

Physics
1 answer:
Yanka [14]3 years ago
6 0

Answer:

1.42

Explanation:

<em> got it right on my homework </em>

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When a mass of 0.350 kg is attached to a vertical spring and lowered slowly, the spring stretches 12.0 cm. The mass is now displ
pantera1 [17]

Answer:

The period is T =  0.700 \ s

Explanation:

From the question we are told that  

    The mass is m =  0.350  \ kg

     The extension of the spring is  x =  12.0 \ cm = 0.12 \ m

       

The spring constant for this is mathematically represented as

       k  = \frac{F}{x}

Where F is the force on the spring which is mathematically evaluated as

       F  =  mg  =  0.350 * 9.8

       F  =3.43 \ N

So  

    k  = \frac{3.43 }{ 0.12}

    k  = 28.583 \ N/m

The period of oscillation is mathematically evaluated as

      T =  2 \pi \sqrt{\frac{m}{k} }

substituting values

     T =  2  *  3.142*  \sqrt{\frac{0.35 }{28.583} }

     T =  0.700 \ s

   

7 0
3 years ago
1.which of the following are true.
Ksivusya [100]

B is the correct answer

3 0
3 years ago
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Help<br><br><br> What are energy and work
mylen [45]

Answer:

<em>In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.</em>

<em />

<em>In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.</em>

Explanation:

<h2><u><em>HOPE THIS HELPS</em></u></h2>
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3 years ago
A substance did not change it's chemical nature in reaction which mostly likely describe the reaction
Ad libitum [116K]
If the substance doesn't change chemically, it is a physical reaction.
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Why did Kenyatta want to distance himself from the Mau Mau? Check all that apply.
Savatey [412]

Answer:

B and C!

Explanation:

I just did it on edge. I hope this helps!

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3 years ago
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