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ch4aika [34]
2 years ago
8

A team exerts a force of 10 N towards the south in a tug of war. The other, opposite team, exerts a force of 17 N towards the no

rth. The net force is A. 27 N east. B. 7 N south C. 7 N north D. 27 N north
Physics
1 answer:
ikadub [295]2 years ago
4 0

Answer:

Option C

Explanation:

According to the question:

Force exerted by the team towards south, F = 10 N

Force exerted by the opposite team towards North, F' = 17 N

Net Force, \vec{F_{net}} = \vec{F'} - \vec{F}

\vec{F_{net}} = \vec{F'} - \vec{F} = 17 - 10 = 7 N

Thus the force will be along the direction of force whose magnitude is higher

Therefore,

\vec{F_{net}} = 7 N towards North

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Answer:

Conservation of energy

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The first law of thermodynamics is given by :

Q=\Delta U+W

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\Delta U is change in internal energy

W is amount of work done by the system

It is clear that the energy can be neither created nor destroyed, it remains conserved. Hence, first law of thermodynamics shows that conservation of energy.      

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3 years ago
Describe what we may observe from Earth regarding the moon’s revolution around the earth and its rotation
slava [35]

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Either way, since the same side always faces the Earth, the only way that can happen is if the moon's revolution around the Earth and rotation on its axis both take EXACTLY the same length of time.

Even if they were only one second different, then we would see the moon's whole surface over a long period of time. But we don't. So the moon's rotation and revolution must be EXACTLY locked to the same period of time.

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3 years ago
1. As a group, write down two challenges in terms of sustainability you would face when developing a sustainable food supply for
Stolb23 [73]

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Learn more about sustainability here:

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One gallon of paint covers an area of 25 m2. What is the thickness of the paint on the wall?​
Flura [38]

Answer:

Explanation:

1 gal = 231 in³

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Where do you find cations on the periodic table
saw5 [17]

Answer:

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