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3 years ago

(15 POINTS)Which best describes the electric field created by a positive charge?

Physics

2 answers:

inysia [295]3 years ago

7 0

Answer: The correct option is "Its rays point away from the charge".

Explanation:

Electric field is the surrounding of the charge in which the electric force can be experienced.

The expression of the electric force in terms of charge and the electric field is as follows;

F=qE

Here, q is the charge and E is the electric field.

The direction of the electric field of a positive charge is away from the charge.

The direction of the electric field of a negative charge is towards the charge.

Therefore, the electric field created by a positive charge describes its rays point towards the charge.

MrRa [10]3 years ago

6 0

I would go with C. It's ray point away from the charge.

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3 years ago

10. A force F S 1 of magnitude 6.00 units acts on an object at the ori- gin in a direction u 5 30.0° above the positive x axis (

MArishka [77]

Answer:

The x component of the x axis is: $F_x = F_1\cos(30)=5\cos(30)= 4.33 u$

The y component of the y axis is: $F_y =F_2+ F_1\sin(30)=6.00+5\sin(30)= 8.50 u$

The magnitude is given by: $F = \sqrt{F_x+F_y}= 9.54 u$

The direction is given by: $\theta = \tan^{-1}\frac{F_y}{F_x}= 63.0 ^\circ$

See the graphical magnitude and direction below.

Explanation:

The x component of the x axis is: $F_x = F_1\cos(30)=5\cos(30)= 4.33 u$

The y component of the y axis is: $F_y =F_2+ F_1\sin(30)=6.00+5\sin(30)= 8.50 u$

The magnitude is given by: $F = \sqrt{F_x+F_y}= 9.54 u$

The direction is given by: $\theta = \tan^{-1}\frac{F_y}{F_x}= 63.0 ^\circ$

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2 years ago

If an atom is neutral, then the number of electrons is equal to the number of

Aloiza [94]

Answer:

Neutral atom means the number of protons is equal to the number of electrons.

Explanation:

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3 years ago

A 0.500 kg bullet is fired from a gun at 25.0 m/s, how much kinetic energy does it have?

slamgirl [31]

Considering the definition of kinetic energy, the bullet has a kinetic energy of 156.25 J.

<h3>Kinetic energy</h3>

Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.

Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and in a rest position, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its rest state by applying a force to it.

The kinetic energy is represented by the following expression:

Ec= ½ mv²

Where: