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
Olenka [21]
3 years ago
14

What does Coulombs law state?

Physics
1 answer:
dedylja [7]3 years ago
7 0
Coulomb's law states<span> that: The magnitude of the electrostatic force of interaction between two point charges is directly proportional to the scalar multiplication of the magnitudes of charges and inversely proportional to the square of the distance between them.
</span>
You might be interested in
If the distance between two objects is increased,the gravitational attraction between them will.....?
tia_tia [17]

The attraction will decrease. Hope I helped :)

4 0
3 years ago
Read 2 more answers
What is the name of the british scientist credited with discovering cathode rays?
elena-14-01-66 [18.8K]
<span> </span>J. J. <span>Thomson discovered cathode rays</span>
5 0
3 years ago
Two satellites A and B orbit the Earth in the same plane. Their masses are 5 m and 7 m, respectively, and their radii 4 r and 7
Dmitry [639]

Answer:

The ratio of their orbital speeds are 5:4.

Explanation:

Given that,

Mass of A = 5 m

Mass of B = 7 m

Radius of A = 4 r

Radius of B = 7 r

The orbital speed of satellite A,

v_{A}=\sqrt{\dfrac{GM_{A}}{R_{A}}}......(I)

The orbital speed of satellite B,

v_{B}=\sqrt{\dfrac{GM_{B}}{R_{B}}}......(I)

We need to calculate the ratio of their orbital speeds

Using equation (I) and (II)

\dfrac{v_{A}}{v_{B}}=\sqrt{\dfrac{\dfrac{GM_{A}}{R_{A}}}{\dfrac{GM_{B}}{R_{B}}}}

Put the value into the formula

\dfrac{v_{A}}{v_{B}}=\sqrt{\dfrac{G\times5m\times7r}{G\times7m\times4r}}

\dfrac{v_{A}}{v_{B}}=\dfrac{5}{4}

Hence, The ratio of their orbital speeds are 5:4.

8 0
3 years ago
How much heat is needed to warm 0.072kg of gold from 20 celsius and 90 celsius if the specific heat of gold 136 joules
dybincka [34]

Heat supplied to the gold will raise the temperature of the gold from 20 degree Celsius to 90 degree Celsius.

Mass of the gold (m) = 0.072 kg

Temperature change (ΔT) = 90 - 20 = 70 degree Celsius

Specific heat capacity of the gold (c) = 136 J/kg C

Heat supplied = m × c × ΔT

Heat supplied = 0.072 × 136 × 70

Heat supplied = 685.44 Joules

Hence, the heat supplied to the gold to raise the temperature from 20 degree Celsius to 90 degree Celsius = 685.44 Joules

5 0
2 years ago
Teens realize that things may be “shades of gray” after they enter Piaget’s
expeople1 [14]
Teens realize that things may be “shades of gray” after they enter Piaget’s formal operational stage. The Piaget's approach for Adolescent, also referred to asFormal operational stage is the stage in which adolescents develop their ability to think about abstract concepts, they become more argumentative and <span>indecisive.</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • You have just landed on Planet X. You release a 100-g ball from rest from a height of 10.0 m and measure that it takes 3.40 s to
    6·1 answer
  • A piece of wood is floating in a bathtub. A second piece of wood sits on top of the first piece, and does not touch the water. I
    11·1 answer
  • Why is it important to have only one set of chemical symbols in the world ?
    5·1 answer
  • a piano of mass 852 kg is lifted to height of 3.5m how much gravitational potential energy is added to the piano acceleration du
    8·1 answer
  • Draw a net force arrow on the picture below.<br><br> What is the net force? State the direction.
    7·2 answers
  • In a face, you run 3000 meters east in 21 minutes. What is your velocity in km/min?
    10·1 answer
  • The resistivity of gold is 2.44 x 10-8 ohms.m at room temperature. A gold wire that is 0.9 mm in diameter and 14 cm long carries
    13·1 answer
  • An element located at the intersection of period 7 and group 2
    10·1 answer
  • Two spheres have a gravitational force between
    6·1 answer
  • If 4 resistors are wired in series, what is the equivalent resistance?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!