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serious [3.7K]
2 years ago
6

how much is need to lift a load of 100n placed at a distance of 29 cm from fulcrum if effort is applied at 60cm from the fulcrum

on opposite side of the load? calculate mechanical advantage and velocity ratio of the lever​
Physics
1 answer:
dangina [55]2 years ago
6 0

Answer:

206.8965517 n

Explanation:

First, we need to see that 60:29 is 2.078965517:1. Then we need to multiply the energy put 29 cm from the fulcrum by 2.078965517, giving us the end result of our answer.

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A 100-turn, 2.0-cm-diameter coil is at rest in a horizontal plane. A uniform magnetic field 60∘ away from vertical increases fro
bixtya [17]

Answer:

The induced emf is  |\epsilon|=0.0261 V

Explanation:

From the question we are told that

     The number of turn is  N = 100

      The diameter of the coil is  d = 2.0 cm = 2.0 *10^{-2} m

      The uniform magnetic at initial is B_i = 0.50 T

      The uniform magnetic at initial is B_f = 1.50 T

      The time taken is t = 0.60s

      The angle the magnetic field makes with vertical is  \theta = 60^o

Generally induced emf is mathematically represented as

     \epsilon = -N \frac{d \o}{dt}

where d \o is the change  magnetic flux

Magnetic flux is mathematically represented as

       \O = \= B \cdot \= A

          = BA cos \theta

Substituting this above  

       \epsilon = -N \frac{d (BA cos \theta)}{dt}

      \epsilon = -N A \frac{d (B cos \theta)}{dt}

  Where B is the magnetic field and A is the area which is mathematically evaluated as

        A = \frac{\pi  d^2}{4}

Substituting values

        A = \frac{\pi (2.0 *10^{-2})^2}{4}

           A= 3.142*10^{-4}m^2

From the equation of emf

          \epsilon = -N A \frac{d (B cos \theta)}{dt}

dB = B_2 -B_1

       So

             |\epsilon| = N A \frac{ (B_2 -B_1 cos \theta)}{dt}

substituting values

            |\epsilon| = 100(3.142*10^{-4}) \frac{ (1.50 -0.50 cos(60))}{0.60}

                |\epsilon|=0.0261 V

6 0
3 years ago
What types of alternative fuels did bp pursue after browne became ceo in 1995?
Sliva [168]

Answer:solar energy

Explanation:

This is the energy gotten from sunlight to knock off electrons from fee atom.

This panel contains photovoltaic cells

8 0
3 years ago
Tim puts his spare change in a jar each day when he comes home. When the jar is full he separates the coins and takes them to th
xxTIMURxx [149]

The bunch of stuff in the jar is a <em>mixture. </em> The different kinds of pieces aren't bound to each other, and they can be easily separated.

6 0
3 years ago
A force of 15 newtons is used to push a box along the floor a distance of 3 meters. How much was done?
bezimeni [28]

Answer:

45 J

Explanation:

The equation for work is:

Work=Force*Distance

We can substitute the given values into the equation:

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7 0
2 years ago
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What value do we use to describe acceleration due to gravity
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Answer:

9.8 m/s2

Explanation:

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3 years ago
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