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makkiz [27]
3 years ago
5

What else did you change in the Levers lab when you changed the position of the fulcrum?

Physics
2 answers:
geniusboy [140]3 years ago
8 0
<h2>Answer:</h2>

<u>By changing the position of the fulcrum, the amount of effort Force also changes</u>

<h2>Explanation:</h2>

The mechanical advantage of a lever is changed when the distance between the pivot point (fulcrum) and the weight is changed. The way levers operate is by an effort applied at a point, which moves a load at another point through a balance point called the fulcrum. If the distance between the fulcrum and the effort is increased, the effort needed to lift a weight decreases proportionally.

konstantin123 [22]3 years ago
6 0

Answer:

the effort force

Explanation:

i just took the test

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A rock hits a window and stops in 0.15 seconds. The net force on the rock is 58N during the collision. What is the magnitude of
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Answer:

The change in momentum is  \Delta p =   0.7 \ kg\cdot m \cdot s^{-1}

Explanation:

From the question we are told that

    The time taken for the stone to stop is \Delta  t = 0.15 \ seconds

    The net force on the rock is  F =  58 \ N

   

The impulse of the rock can be mathematically represented as

     I  =  F * \Delta t

Substituting values

     I  =  58 * 0.15

    I  =  0.7\  kg * m  * s^{-1}

Now impulse is defined as  the rate at which momentum change

   Hence the change in momentum \Delta p  of the rock is equal to the impulse of the rock

 So  

       \Delta p =  I  =  0.7 \ kg\cdot m \cdot s^{-1}

7 0
3 years ago
A seagull flying horizontally at 8.00m/s carries a clam with a mass of 300g in its beak. Calculate the total mechanical energy o
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Answer:

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First we will find kinetic energy.

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timofeeve [1]

Answer:

The right solution is "24.39 per sec".

Explanation:

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