1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Whitepunk [10]
3 years ago
5

What do electric forces between charges depend on

Physics
1 answer:
denis23 [38]3 years ago
7 0

Answer:

On the magnitude of the charges, on their separation and on the sign of the charges

Explanation:

The magnitude of the electric force between two charges is given by

F=k\frac{q_1 q_2}{r^2}

where

k is the Coulomb's constant

q1, q2 are the magnitudes of the two charges

r is the separation between the charges

From the formula, we see that the magnitude of the force depends on the following factors:

- magnitude of the two charges

- separation between the charges

Moreover, the direction of the force depends on the sign of the two charges. In fact:

- if the two charges have same sign, the force is repulsive

- if the two charges have opposite signs, the force is attractive

You might be interested in
Which formula can be used to calculate average speed (v) for steady motions?
Liono4ka [1.6K]
I’m pretty sure it’s speed=distance/time
3 0
3 years ago
My questions are in the picture: <br>Please help.
frutty [35]

Answer:

a.)

I.) Open system

II.) Closed system

b.)

The total momentum of the object and earth system stay the same as the object fall toward the earth

The kinetic energy of the object increases as the object falls toward the earth.

Explanation:

a.)

I.) The system containing only the object is an open system because of the influence of external forces and presence of matters. External forces in this scenario means gravitational force acting on the object. And air is the matter that has influence on the object.

II.) The system containing only the object and earth is a closed system. Because in a closed system, there are no external dissipative forces acting on it. Universe is a closed system. And the mechanical energy of a close system is conserved. The mechanical energy will remain constant. In other words, it will not change (become more or less). This is called the Law of Conservation of Mechanical Energy.

b.) The total momentum of the object and earth system stay the same as the object fall toward the earth. Because momentum will always be conserved.

The kinetic energy of the object increases as the object falls toward the earth. When the object was initially at rest, kinetic energy equals zero

8 0
3 years ago
Let A be the last two digits and let B be the sum of the last three digits of your 8-digit student ID. (Example: For 20245347, A
zheka24 [161]

Answer:

The speed is 173 m/s.

Explanation:

Given that,

A = 47

B = 14

Length 1 urk = 58.0 m

An hour is divided into 125 time units named dorts.

3600 s = 125 dots

dorts = 28.8 s

Speed v= (25.0+A+B) urks/dort

We need to convert the speed into meters per second

Put the value of A and B into the speed

v=25.0+47+14

v =86\ urk s/dort

v=86\times\dfrac{58.0}{28.8}

v=173.19\ m/s

Hence, The speed is 173 m/s.

7 0
3 years ago
what is the true answer in this question?Making a schedule on the things that need to be accomplished yes or no​
musickatia [10]

Answer:

yes

Explanation:

this is true don't believe other people whether right or wrong

5 0
3 years ago
An 850-lb force is applied to a 0.15-in. diameter nickel wire having a yield strength of 45,000 psi and a tensile strength of 55
Sindrei [870]

Answer:

a)Yes will deform plastically

b) Will NOT experience necking

Explanation:

Given:

- Applied Force F = 850 lb

- Diameter of wire D = 0.15 in

- Yield Strength Y=45,000 psi

- Ultimate Tensile strength U = 55,000 psi

Find:

a) Whether there will be plastic deformation

b) Whether there will be necking.

Solution:

Assuming a constant Force F, the stress in the wire will be:

                       stress = F / Area

                       Area = pi*D^2 / 4

                       Area = pi*0.15^2 / 4 = 0.0176715 in^2

                       stress = 850 / 0.0176715

                       stress = 48,100.16 psi

      Yield Strength < Applied stress > Ultimate Tensile strength

                        45,000 < 48,100 < 55,000

Hence, stress applied is greater than Yield strength beyond which the wire will deform plasticly but insufficient enough to reach UTS responsible for the necking to initiate. Hence, wire deforms plastically but does not experience necking.

6 0
3 years ago
Other questions:
  • It is 6.00 km from your home to the physics lab. as part of your physical fitness program, you could run that distance at 10.0 k
    11·1 answer
  • A group of tourists drives through a state park in Maine. While arguing about whether the animal they've just seen is an Elk or
    8·1 answer
  • Why does digital Radiology provide a reduced radiation dose compared to film?
    14·1 answer
  • Explain why the thermometer has thin walls on its bulb?
    13·1 answer
  • Scientists study a radioactive source that produces a stream of positively-charged particles moving with different speeds along
    15·2 answers
  • A child pushes horizontally on a box of mass m which moves with constant speed v across a horizontal floor. The coefficient of f
    14·1 answer
  • (a) Calculate the self-inductance of a 42.2 cm long, 10.0 cm diameter solenoid having 1000 loops. (b) How fast can it be turned
    15·1 answer
  • In an inertia balance, a body supported against gravity executes simple harmonic oscillations in a horizontal plane under the ac
    12·1 answer
  • 7. A scientific theory can change if (2 points) nobody wants to believe it it becomes too old the scientist who discovered it di
    15·1 answer
  • *
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!