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givi [52]
2 years ago
12

You have a wooden bench in your living room. You set your backpack on the bench and lean your hand against the wall. Name two ac

tion-reaction pairs that are present in this situation
Physics
1 answer:
kotykmax [81]2 years ago
3 0

The action-reaction pairs in the given situation are:

  • the backpack and the bench
  • the and and the wall

<h3>What are action-reaction pairs?</h3>

Action-reaction pairs are two forces which are equal but oppositely directed in their line of action.

Action-reaction pairs are according to Newton's third law of motion.

The action-reaction pairs in the given situation are:

  • the backpack and the bench
  • the and and the wall

Learn more about action-reaction pairs at: brainly.com/question/12800382

#SPJ1

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What is the strength of the electric field in a region where the electric potential is constant?
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Answer:

Where the electric potential is constant, the strength of the electric field is zero.

Explanation:

As a test charge moves in a given direction, the rate of change of the electric potential of the charge gives the potential gradient whose negative value is the same as the value of the electric field. In other words, the negative of the slope or gradient of electric potential (V) in a direction, say x, gives the electric field (Eₓ) in that direction. i.e

Eₓ = - dV / dx        ----------(i)

From equation (i) above, if electric potential (V) is constant, then the differential (which is the electric field) gives zero.

<em>Therefore, a constant electric potential means that electric field is zero.</em>

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Aluminum oxide can be produced during rocket launches. Show that the sum of positive and negative charges in a unit of Al2O3 equ
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Answer:

The sum of positive and negative charges in a unit of Al2O3 equals zero.

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Charge on Al2O3 = 2(charge on Al ion) + 3(charge on O ion)

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Explanation:

Aluminium has 3 electrons in the outermost shell and has the tendency to lose those 3 electrons to form a positive ion and have a complete outermost shell.

Whereas, Oxygen has 6 electrons in the outermost and has the tendency to accept two more electrons to form a negative ion and have a complete outermost shell.

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A yellow and green car traveled 400 miles to Dayton, OH. The green car made the trip in 10 hours. The yellow arrived in 8 hours.
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Answer: C)The yellow car was faster. Yellow traveled at a speed of 50 mph while green was traveling at an average of 40 mph.

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The speed of each car is defined as:

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For the yellow car, d=400 mi and t=8 h, so its speed is

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For the green car, d=400 mi and t=10 h, so its speed is

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So, the correct choice is

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