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
jek_recluse [69]
3 years ago
7

A charge Q exerts a 1.2 N force on another charge q. If the distance between the charges is doubled, what is the magnitude of th

e force exerted on Q by q
Physics
1 answer:
Anon25 [30]3 years ago
8 0

Answer:

0.3 N

Explanation:

Electromagnetic force is F= Kq1q2/r^2, where r is the distance between charges. If r is doubled then the force will be 1/4F which is 0.3 N.

You might be interested in
A bike with 15cm diameter wheels accelerates uniformly from rest to a speed of 7.1m/s over a distance of 35.4m. Determine the an
Finger [1]

Answer:

9.47 rad/s^2

Explanation:

Diameter = 15 cm, radius, r = diameter / 2 = 7.5 cm = 0.075 m, u = 0, v = 7.1 m/s,

s = 35.4 m

let a be the linear acceleration.

Use III equation of motion.

v^2 = u^2 + 2 a s

7.1 x 7.1 = 0 + 2 x a x 35.4

a = 0.71 m/s^2

Now the relation between linear acceleration and angular acceleration is

a = r x α

where,  α is angular acceleration

α = 0.71 / 0.075 = 9.47 rad/s^2

8 0
3 years ago
g When a high-energy proton or pion traveling near the speed of light collides with a nucleus, it may travel 3.2 10-15 m before
AnnyKZ [126]

Answer:

Time, t=1.07\times 10^{-23}\ s

Explanation:

Given that,

When a high-energy proton or pion traveling near the speed of light collides with a nucleus, it may travel 3.2\times 10^{-15}\ m before interacting.

Let t is the time interval required for the strong interaction to occur. It will move with the speed of light. So,

t=\dfrac{d}{c}\\\\t=\dfrac{3.2\times 10^{-15}}{3\times 10^8}\\\\t=1.07\times 10^{-23}\ s

So, the time interval is 1.07\times 10^{-23}\ s

5 0
3 years ago
_____ are placed on dangerous machinery to detect motion, light, heat, pressure, or another stimulus. Their presence helps prote
goblinko [34]

Answer;

-Sensors

-Sensors are placed on dangerous machinery to detect motion, light, heat, pressure, or another stimulus. Their presence helps protect operators from injury while working on machines.

Explanation;

-Machinery, safety and factory floor sensors and switches help workers become more productive, efficient, and safe.

-Hazardous machines and systems are frequently equipped with safety elements (safety doors) with a locking mechanism to protect the operator. Their function is to prevent hazardous machine functions if the safety door is not closed and locked and to keep the safety door closed and locked until the risk of injury has passed.

4 0
3 years ago
Read 2 more answers
You throw a ball vertically upward, and as it leaves your hand, its speed is 10.0 m/s.
8090 [49]
The answer is A bc I did the quiz and I got it right
5 0
3 years ago
This company is run by kids right
GREYUIT [131]

Answer:

i d k about that but I know it`s a Polish thing

4 0
3 years ago
Read 2 more answers
Other questions:
  • Why does the air pressure inside the tires of a car increase when the car is driven?
    6·1 answer
  • Transverse waves travel with a speed of 20 m/s on a string under a tension 0f 6.00 N. What tension is required for a wave speed
    7·1 answer
  • How does a Freebody diagram tell you about the net force an object?
    9·1 answer
  • The attractive electrostatic force between the point charges +8.44 ✕ 10-6 and q has a magnitude of 0.961 n when the separation b
    15·1 answer
  • A metal wire has a circular cross section with radius 0.800 mm. You measure the resistivity of the wire in the following way: yo
    7·1 answer
  • True or false the refraction of a wave is how many wavelengths pass a fixed point each second
    7·2 answers
  • If the starting population of 5 rabbits grows at 200% each year, how many will there be 50 years?
    10·2 answers
  • 50 N of force is exerted on a crate. It accelerates at a rate of 1.2 m/s/s. Calculate its mass
    7·1 answer
  • Which of the following is a device
    10·2 answers
  • Explain about magnetic force
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!