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
DerKrebs [107]
3 years ago
10

A horizontal force of 120 N is required to push a bookcase across the floor at a constant velocity how much is the friction forc

e that acts on the sliding bookcase
Physics
1 answer:
belka [17]3 years ago
8 0

The Friction Force that acts on a sliding bookcase is -120 N

<u>Explanation:</u>

  • Frictional force is the force developed by the two surfaces where they contact and slide against each other. They mainly affected by amount of force impelled them together and by the angle and position of the object.
  •             Frictional Force F = Coefficient of friction * normal force
  • At a constant velocity, there will be no acceleration and the net force will be zero.

               Net Force        = m * a = 0

               120 - Friction   = 0

               Friction Force  = -120 N

You might be interested in
Honey bees can acquire a small net charge on the order of 1 pC as they fly through the air and interact with plants. Estimate th
murzikaleks [220]

Answer:

3.35\cdot 10^{-16}N

Explanation:

The force exerted on a charged particle due to a magnetic field is given by:

F=qvB sin \theta

where

q is the charge of the particle

v is the velocity of the particle

B is the magnetic field strength

\theta is the angle between the directions of B and v

In this problem we have:

q=1 pC=1\cdot 10^{-12} C is the charge of one honey bee

v=15 mi/h = 6.7 m/s is the velocity of the bee

B=5.0\cdot 10^{-5} T is the average strength of the Earth's magnetic field

\theta=90^{\circ}, because the bee flies east to west while the Earth's magnetic field is south to north

Substituting into the equation, we find:

F=(1\cdot 10^{-12}C)(6.7 m/s)(5.0\cdot 10^{-5} T)(sin 90^{\circ})=3.35\cdot 10^{-16}N

7 0
3 years ago
Which term describes energy stored inside the nucleus of an atom?
Ksju [112]
Nuclear energy that what I think it is
7 0
3 years ago
Can someone help me pls!!
Katen [24]

Answer:

Decelerating

Explanation:

One arrow is moving it forward but the other arrow is using more force to move it backwards causing it to have a reduction in speed.

5 0
3 years ago
Please help. I will give brainliest to first good answer
Arturiano [62]
Answer: C). Light rays are bent by the water in the glass

It refracts the light
The bending of a light moving from one end to another is called refraction
7 0
3 years ago
Read 2 more answers
Energy can be blank from one form to another
Tanya [424]

Answer: "converted"

Energy can be converted from one form to another

Explanation:

The law of conservation of energy states that energy can neither be created nor destroyed but converted from one form to another.

For instance:

- an electric generator convert mechanical energy to electrical energy

- a solar panel system convert solar energy to electrical energy.

- an electric pressing iron convert electrical energy to heat energy

Thus, energy can be converted from one form to another

7 0
3 years ago
Other questions:
  • 1.)Describe an experience where you encountered a buoyant force and tell what it felt like.
    11·1 answer
  • According to Newton's second law, force is equal to ______________.
    15·2 answers
  • Which statement best defines energy?
    10·1 answer
  • In which scenario does radiation occur?
    15·2 answers
  • A force produces an acceleration of 5 ms
    8·1 answer
  • Consider a simple parallel-plate capacitor whose plates are given equal and opposite charges and are separated by a distance d.
    5·1 answer
  • Find the color of light whose photon has 4.75x10^-19 J of energy
    10·1 answer
  • Based on the graph what kind of relationship exists between the change in temperature of the water in the gravitational potentia
    10·2 answers
  • If the astronaut in the video wanted to move upward, in which direction should he throw the object? Why?
    7·2 answers
  • Fill in the blanks<br>i) Most liquid that conduct electricity are solution of—————and—————.<br>​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!