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
viktelen [127]
3 years ago
6

PLEASE HELP!! URGENTT!

Physics
1 answer:
oksano4ka [1.4K]3 years ago
3 0

Answer:

120 Newton

Explanation:

Given the following data;

Mass = 12 kg

Angle = 4°

We know that acceleration due to gravity is equal to 10 m/s

To find the minimum force to stop the block from sliding;

Force = mgCos(d)

Where;

m is the mass of an object.

g is the acceleration due to gravity.

d is the angle of inclination (theta).

Substituting into the formula we have;

F = 12*10*Cos(4°)

F = 120 * 0.9976

F = 119.71 ≈ 120 Newton

You might be interested in
2 decaliters + 800 deciliters = __________ liters?
Stolb23 [73]
Answer is 100 liters
8 0
4 years ago
Read 2 more answers
Pressure in a liquid increases with its ..........​
Novay_Z [31]

Answer: Pressure increases as the depth increases

Explanation: The pressure in a liquid is due to the weight of the column of water above. Since the particles in a liquid are tightly packed, this pressure acts in all directions.

6 0
3 years ago
Read 2 more answers
Place the following structures in the appropriate category based on their location in a cell
Studentka2010 [4]

Answer:

Cell surface.

  • Cilium
  • Plasma membrane
  • Microvilus.

Nucleus

  • Cellular DNA
  • Nucleolus
  • Chromosome.

Cytoplasm

  • Mitochondria
  • Golgi apparatus
  • Cytoskeleton.

3 0
3 years ago
Compare the electric and gravitational force between the electron and the proton in a hydrogen atom. The electric charge of the
zepelin [54]

The gravitational attraction between electron and proton is 10−40 whereas electrostatic force of attraction between a proton and an electron is 10-8.

<h3>What is the gravitational force between electron and proton in a hydrogen atom?</h3>

The gravitational attraction between electron and proton in a hydrogen atom is weaker than the coulomb attraction by a factor of about 10−40 while on the other hand, the electrostatic force of attraction between a proton and an electron in a hydrogen atom is 10- 8 which is 9 times.

The electric charge of the electron and proton are the same i.e. -1.60x10-19C whereas their gravitational force is different due to difference in mass.

So we can conclude that gravitational attraction between electron and proton is 10−40 whereas electrostatic force of attraction between a proton and an electron is 10-8.

Learn more about force here: brainly.com/question/12970081

#SPJ1

7 0
2 years ago
Why magnet has more force at poles than middle ? Don't steal from google
lisabon 2012 [21]
Middle is the furthest from each pole, there is magnetic force at pole as it is due to the Earth's magnetic core
5 0
3 years ago
Read 2 more answers
Other questions:
  • A pool player hit a ball with a mass of 0.25kg. The ball travels at a velocity of 15 m/s for 0.75 s until it hits the side of th
    13·1 answer
  • Voices of swimmers at a pool travel 400 m/s through the air and 1,600 m/s underwater. The wavelength changes from 2 m in the air
    5·2 answers
  • A person on a roof throws one ball downward and an identical ball upward at the same speed. The ball thrown downward hits the gr
    7·1 answer
  • . Which is the transfer of energy as waves moving through space?
    7·1 answer
  • Can an object with constant acceleration reverse its direction of travel? Can it reverse its direction twice? Explain.
    12·1 answer
  • Here is a picture showing how two magnets will stick to one another when opposite poles align. When these magnets are pulled
    14·1 answer
  • Answer all these questions
    11·2 answers
  • It is possible for an excited hydrogen atom to return to the ground state by the emission of a single photon. regardless of the
    14·1 answer
  • A wave has a frequency of 12 Hz and a wavelength of 5 m. What is the wave speed?
    13·1 answer
  • . A certain sample of metal has a mass of 3 kg and a volume of 250 cm3. What is its density?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!