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vazorg [7]
3 years ago
15

The direction of an electric field is the direction (5 points) a negative test charge will move in the field a positive test cha

rge will move in the field either a positive or negative test charge will move in the field the test charge may be either negative or positive
Physics
1 answer:
svet-max [94.6K]3 years ago
4 0

Answer:

a positive test charge will move in the field

Explanation:

The direction of an electric field corresponds to the direction of motion of a positive test charge in the electric field. In fact:

- the electric field produced by a positive charge points outwards the charge --> this is because when a positive test charge is placed in this field, it will feel a repulsive force (because two positive charges repel each other), so it will move away from the positive charge that produces the field

- the electric field produced by a negative charge points towards the charge  itself--> this is because when a positive test charge is placed in this field, it will feel an attractive force (because a positive and a negative charge attract each other), so it will move toward the negative charge that produces the field.

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<h2>All waves must ____ have to travel through </h2>

Explanation:

Wave

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3 years ago
When a cannon fires a cannonball, the cannon will recoil backward because the:
gulaghasi [49]

C) total linear momentum of the ball and cannon is conserved.

Basically it happens that in the beginning before there is a momentum acting on the two bodies, these are a unique system. Here the total momentum of the System is 0. However, when the positive momentum of the cannonball is added, the system will be immediately affected by a negative momentum which will pull back the cannon. Could this be extrapolated as a condition of Newton's third law.

4 0
3 years ago
Which of the following elements do living things have that volcanic rocks do not have?
jek_recluse [69]

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8 0
3 years ago
Suppose that you are holding a pencil balanced on its point. If you release the pencil and it begins to fall, what will be the a
Naily [24]

Answer:

The angular acceleration of the pencil<em> α  = 17 rad·s⁻²</em>

Explanation:

Using Newton's second angular law or torque to find angular acceleration, we get the following expressions:

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    W r = I α                          (2)

The weight is that the pencil has is,

   sin 10 = r / (L/2)

   r = L/2(sin(10))

 

The shape of the pencil can be approximated to be a cylinder that rotates on one end and therefore its moment of inertia will be:

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Thus,

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   α  = 3/2(9.8) / 0.150sin(10)

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Therefore, the angular acceleration of the pencil<em> </em>is<em> 17 rad·s⁻²</em>

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3 years ago
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