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iris [78.8K]
3 years ago
9

John is gardening and finds a tree root in the soil. He decides he will try to pull it out. He grabs onto it and uses a force of

100 Newtons. He exerts that force for 5 seconds until he is able to yank the root out, 1 meter away. How much power did John use to extract the root?
20 joules/sec
25 joules/sec please help due soon
15 joules/sec
10 joules/sec
Physics
1 answer:
Leya [2.2K]3 years ago
7 0

Answer:

20 joules/sec

Explanation:

100/5=20

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A circular loop of wire with 10 turns, radius 0.241 m and resistance 0.235 Ohms is connected to a 13.1 V power supply. The magne
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Given Information:  

Resistance of circular loop = R = 0.235 Ω 

Radius of circular loop = r = 0.241 m

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Required Information:  

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Explanation:  

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Where μ₀= 4πx10⁻⁷ is the permeability of free space  and current in the loop is given by

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