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Verdich [7]
3 years ago
15

Cori uses 475 J of energy from her muscles to push a bar 1 m on a weight machine at the gym. Between the bar’s motion , the heat

generated by the machine, and all other types of work done by machine, ( blank) J of output work will be done.
Physics
2 answers:
Softa [21]3 years ago
8 0

Answer:

Cori uses 475 J of energy from her muscles to push a bar 1 m on a weight machine at the gym. Between the bar’s motion , the heat generated by the machine, and all other types of work done by machine, ( 475 ) J of output work will be done.

Explanation:

on edge

dimulka [17.4K]3 years ago
5 0

Answer:

475

Explanation:

Cori does not exert any more force than 475 J, so 475 is the answer.

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Answer:\frac{D_A}{v_B-v_A}

Explanation:

Given

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gravitational force

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Margaret [11]

Let  us consider two bodies having masses m and m' respectively.

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Let the mass of central star is m .

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For planet B the orbital radius  r_{2} =2r_{1} and mass m_{2} = 3 m_{1}

Hence the gravitational force f_{2} =G\frac{m m_{2} }{r^{2} }

                                                 f_{2} =G\frac{m*3m_{1} }{[2r_{1}] ^{2} }

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                                      =\frac{3}{4}     [ ans]


                                                 

                           

3 0
3 years ago
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Ali mixes 20g of Sodium Chloride in 100g of water at 15 Degree °C. Calculate the mass of the solution
Lera25 [3.4K]

Answer:

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Explanation:

The mass of the solution is given by:

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Where:

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m_{1}: is the mass of the solvent

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In the solution, the solvent is the majority compound (in mass) and the solute is the minority (in mass), so the solvent is the water and the solute is sodium chloride.          

Hence, the mass of the solution is:

m_{sol} = m_{1} + m_{2} = 100 g + 20 g = 120 g  

I hope it helps you!                  

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