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Ann [662]
3 years ago
7

3) A 900N mountain climber scales a 100m cliff. How much work is done by the mountain climber?

Physics
2 answers:
Y_Kistochka [10]3 years ago
4 0

Answer:

90 kJ

Explanation:

Work = force × distance

W = (900 N) (100 m)

W = 90,000 J

W = 90 kJ

Yuri [45]3 years ago
4 0

Answer:

90kg

Explanation:

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Two force vectors are oriented such that the angle between their directions is 38 degrees and they have the same magnitude. If t
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Answer:

Sum of the forces will be equal to 3.479 N

Explanation:

We have given two same forces are oriented at an angle of 38°

Magnitude of each force is given F_1=F_2=1.84

We have to find the sum of the forces

Sum of the forces will be equal to

F=\sqrt{F_1^2+F_2^2+2F_1F_2cos\Theta }

So sum of the forces will be equal to F=\sqrt{1.84^2+1.84^2+2\times 1.84\times 1.84\times cos38^{\circ} }=3.479

So sum of the force will be equal to 3.479 N

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2.99\cdot 10^{11}C

Explanation:

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Q=Ne=(1.87\cdot 10^{30})(1.6\cdot 10^{-19}C)=2.99\cdot 10^{11}C

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Answer:

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