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
Free_Kalibri [48]
3 years ago
15

In what way are gravitational and electrical forces similar?

Physics
1 answer:
Nadusha1986 [10]3 years ago
6 0

Answer:

D. Both occur between objects independently whether they are in contact  or not.

Explanation:

- The gravitational force is a force that is exerted between two (or more) objects having mass. This force is always attractive and its magnitude is given by

F=G\frac{m_1 m_2}{r^2}

where G is the gravitational constant, m1 and m2 are the two masses, and r is the distance between the two masses.

- The electrical force is a force that is exerted between two (or more) objects having electrical charge. It can be either attractive or repulsive, depending on the sign of the two charges, and its magnitude is given by

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

where k is the Coulomb's constant, q1 and q2 are the two charges, and r the distance between the two charges.

Looking at both formulas, we see that the two forces are present even when the two objects are not in contact with each other (in fact, r can assume any value in the formula). They are said to be non-contact forces. Therefore, the correct option is

D. Both occur between objects independently whether they are in contact  or not.

You might be interested in
A pesticide kills insects by disabling the ribosomes in their cells.
Stolb23 [73]

Answer:

cell division

7 0
3 years ago
Read 2 more answers
A compressed spring does not have elastic potential energy.
Alexus [3.1K]

Answer:

False

Explanation:

The second you let go its gonna release kinetic energy that's why it's potential

6 0
2 years ago
What part of the electromagnetic spectrum do you think is most important and why?
KonstantinChe [14]
Radio waves, gamma-rays, visible light, and all the other parts of the electromagnetic spectrum are electromagnetic radiation. Electromagnetic radiation can be described in terms of a stream of mass-less particles, ...

The electromagnetic spectrum is a map of all the types of light that we can identify. It separates all the types of light by wavelength because that directly relates to how energetic the wave is. More energetic wave

For most of history, visible light was the only known part of the electromagnetic spectrum. The ancient Greeks recognized that light traveled in straight lines and studied some of its properties, including reflection

4 0
3 years ago
Read 2 more answers
A student grabs a piece of paper and tears it from the middle. Which statement best explains the forces involved?
PolarNik [594]

Answer:

b. The normal force between the molecules of the paper is overcome by the contact force of the hands.

Explanation:

The paper molecules are held together by a weak bond. When the student holds the paper on both sides with the center of the paper in between, the student applies two equal forces in the opposite direction of the paper making the paper molecules weaken and separate.

3 0
3 years ago
Read 2 more answers
In terms of matter and resources, Earth is essentially a(n) ________ system ; in terms of energy, Earth is a(n) ________ system.
Savatey [412]

Answer:

b

Explanation:

6 0
3 years ago
Other questions:
  • Why does the percentage of water vapor vary?
    10·1 answer
  • A parallel plate capacitor has two plates, both have an area of 1.7 m2 and the distance between the plates is 3.9 mm. The relati
    15·1 answer
  • Three kilograms of argon (Ar) changes from an initial volume and a temperature of 298K to (a) four times the volume and a temper
    10·1 answer
  • A bicycle takes 8 seconds to accelerate at a constant rate from rest to a speed of 4 m/s. If the mass of the bicycle and rider t
    9·1 answer
  • Ricardo is on vacation, doing some mountain climbing. He notices that the higher he goes up a mountain, the colder he feels. He
    13·2 answers
  • Which force is sometimes attractive and has an infinite range?
    5·2 answers
  • What does the author explain in this passage?
    8·1 answer
  • Dimensional formula of Amplitude ?​
    5·1 answer
  • 10. Unless a light ray comes into contact with a surface or enters a different material, it
    5·1 answer
  • The small piston of a hydraulic press has an area of 3.2 in2. If the applied force is 2.0 lb, what must the area of the large pi
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!