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
marshall27 [118]
2 years ago
14

figure shows four situations in which a horizontal net force acts on the same block which is initially at rest

Physics
1 answer:
skelet666 [1.2K]2 years ago
3 0

The friction force has a 2 N force.

The static friction coefficient that exists between the project and the surface should be multiplied to provide the friction force. When the surface is thought of as horizontal, the normal force should be equal to the weight of the block and should also be directed in the opposite direction.

the friction force is therefore

= 0.5*N = 0.5* (10)

= 5

The friction force is greater than the force acting on the block, which is why there is no movement of the object even though it should be the reverse. Furthermore, the actual force needs to be equal.

The friction force here should therefore be 2N.

Learn more about force here: brainly.com/question/4241156

#SPJ4

A 2.0-N force acts horizontally on a 10-N block that is initially at rest on a horizontal surface. The coefficient of static friction between the block and the surface is 0.50. What is the magnitude of the frictional force that acts on the block?

You might be interested in
Statement A: Area of a rectangle with measured length = 2.536 mm and width = 1.4 mm.
pochemuha

Explanation:

Formula for calculating the area of a  rectangle A = Length *width

For statement A;

Given area of a rectangle with measured length = 2.536 mm and width = 1.4 mm.

Area of the rectangle = 2.536mm * 1.4mm

Area of the rectangle = 3.5504mm²

The rule of significant figures states that we should always convert the answer to the least number of significant figure amount the given value in question. Since 1.4mm has 2 significant figure, hence we will convert our answer to 2 significant figure.

Area of the rectangle = 3.6mm² (to 2sf)

For statement B;

Given area of a rectangle with measured length = 2.536 mm and width = 1.41 mm.

Area of the rectangle = 2.536mm * 1.41mm

Area of the rectangle = 3.57576mm²

Similarly, Since 1.41mm has 3 significant figure compare to 2.536 that has 4sf, hence we will convert our answer to 3 significant figure.

Area of the rectangle = 3.58mm² (to 3sf)

Based on the conversion, it can be seen that 3.6mm²  is greater than 3.58mm², hence the area of rectangle in statement A is greater than the area of the rectangle in statement B.

7 0
3 years ago
How can humans activities affect the frequency and impact of natural disasters
denpristay [2]
Forest fires can be an impact 

8 0
3 years ago
Read 2 more answers
If BHALA AHMAD KHAN applied the 20N force is applied on an object moving with the velocity 30 m/s. calculate the power in KW.
Leokris [45]

Answer:0.6kw

Explanation:

Power=force×velocity

Power=20×30=600w

In kw it's going to be 600/1000=0.6kw

4 0
3 years ago
Even in the most advanced circuits, we cannot oscillate electrons back and forth at that rate through wires. But we can oscillat
den301095 [7]

Answer:

the oscillations of the electrons must be in the 10⁸ Hz = 100 MHz range

Explanation:

The speed of a wave of radio, television, light, heat, all are manifestations of electromagnetic waves that are oscillations of electric and magnetic fields that support each other, the speed of all these waves is the same and the vacuum is equal to c = 3 108 m / s

All waves have a relationship between the speed of the wave, its frequency and wavelength

          c = λ f

          f = c /λ

for this case lam = 1 m

          f = 3 10⁸/1

          f = 3 10⁸ Hz

the oscillations of the electrons must be in the MHz range

It should be clarified that the speed of light in air is a little lower

          n = c / v

          v = c / n

the refractive index of vacuum is n = 1 and the refractive index of air is n = 1.000002

5 0
3 years ago
A 600 kg car is at test and then accelerated to 5m/s , what is its original kinetic energy
ycow [4]

Answer:

0 J

Explanation:

Kinetic energy is defined as:

KE = 1/2 m v²

where m is mass and v is velocity.

The car starts at rest, so it has zero velocity.  Therefore, its initial kinetic energy is 0 J.

3 0
3 years ago
Other questions:
  • What is mass times acceleration?
    6·1 answer
  • What happens to white light when it passes through a prism
    11·1 answer
  • Difference between male and female gamete​
    9·2 answers
  • What makes humans humans I mean like what do they do that makes us humans?
    12·2 answers
  • An airplane starts at rest and accelerates down the runway for 20 s. At the end of the runway, its velocity is 80 m/s north. Wha
    7·1 answer
  • If a negative charge is initially at rest in an electric field, will it move toward a region of higher potential or lower potenti
    8·1 answer
  • Recall some things you already know about projectile motion. Does a force in the vertical direction affect the horizontal compon
    9·1 answer
  • A forward horizontal force of 3 lb is used to pull a 60 lb sled at constant velocity on a frozen pond. the coefficent of (kineti
    14·1 answer
  • The buildup of plaque on the walls of an artery may decrease its diameter from 1.1 cm to 0.90 cm. The speed of blood flow was 17
    15·1 answer
  • Which type of light bulb uses phosphors?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!