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Yanka [14]
3 years ago
7

How much work do you do when you push a shopping cart with a force of 20 N for a distance of 5m?

Physics
1 answer:
KiRa [710]3 years ago
6 0

Answer:

A.100J

Explanation:

Given parameters:

Force on car = 20N

Distance  = 5m

Unknown:

Work done  = ?

Solution:

Work done is the product of force and distance;

  Work done  = force x distance;

Insert given parameters and solve;

        Work done  = 20 x 5  = 100J

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For a system mass of 600g and a hanging weight of 0.50 N, determine the acceleration of the system
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Explanation:

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A proton is 0.9 meters away from a 1.4 C charge. What is the magnitude of the electric force between the proton and the charge
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Answer:

F = 2.49 x 10⁻⁹ N

Explanation:

The electrostatic force between two charged bodies is given by Colomb's Law:

F = \frac{kq_1q_2}{r^2}\\

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Therefore,

F = \frac{(9\ x\ 10^9\ N.m^2/C^2)(1.6\ x\ 10^{-19}\ C)(1.4\ C)}{(0.9\ m)^2}

<u>F = 2.49 x 10⁻⁹ N</u>

8 0
3 years ago
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Which of the following statements are true of free-
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1 year ago
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Two hikers are 14 miles apart and walking toward each other. They meet in 2 hours. Find the rate of each hiker if one hiker walk
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Answer:

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Explanation:

Let the rate of one be y mph

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