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loris [4]
3 years ago
6

What is the direction of the electric field at a point directly below a negative charge, Q?

Physics
2 answers:
Serhud [2]3 years ago
8 0
The correct answer is 'up'. 
aleksklad [387]3 years ago
6 0

Answer:

Upward

Explanation:

The electric field produced by a single point charge (either positive or negative) is radial. The direction of the field lines is determined by the direction in which a small positive test charge immersed in the field will move. Therefore:

- The field lines point towards the charge for a negative charge (because the small positive test charge is attracted by that)

- The field lines point away from the charge for a positive charge (because the small positive test charge is repelled by that)

In this case, we have a negative charge Q: since the field lines are towards the charge, if we are at a point directly below the charge, the direction of the field is toward the charge, so upward.

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What is net force?
kramer

Answer:

A. The sum of all the forces acting on an object.

3 0
3 years ago
A man standing on top of a 30 m tall building throws a brick downwards with a velocity of 12 m/s. Determine the speed of the bri
loris [4]

Answer:

27.1m/s

Explanation:

Given parameters:

Height of the building  = 30m

Initial velocity  = 12m/s

Unknown:

Final velocity  = ?

Solution:

We apply one of the kinematics equation to solve this problem:

         v²  = u²  + 2gh

v is the final velocity

u is the initial velocity

g is the acceleration due to gravity

h is the height

          v²   = 12²  + (2 x 9.8 x 30)

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3 0
3 years ago
Two factors effecting the magnitude of the force of gravity between 2 objects are...
slavikrds [6]

Answer:

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Explanation:

According to Newton's law of universal gravitation

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where F is the gravitational force, G is the universal gravitational constant and its value is 6.6743 × 10⁻¹¹ Nm²/kg₂ , m₁ and m₂ are masses of bodies and r is the distance between them.

It can be seen from the above equation that F is directly proportional to the product of the masses and inversely proportional to the square of distance between them.

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                        F ∝ 1/r²

As far as the masses of the bodies increase, magnitude of the Gravitational force increases and if distance between them increase then Gravitational force between them decreases.

5 0
3 years ago
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GaryK [48]

Answer:

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Explanation:

3 0
3 years ago
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