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
Otrada [13]
2 years ago
14

3)A mass of 4 kg rests on a horizontal plane. The plane is gradually inclined until at an angle o=15° with the horizontal, the m

ass just begins to slide. What is the coefficient of static friction between the block and the surface?​
Physics
1 answer:
Veronika [31]2 years ago
7 0

Answer:

A mass of 4 Kg rest on the horizontal plane. The plane is gradually inclined until at an angle of θ=15

∘

 with the horizontal,the mass just being to slide what is the coffeficient  of static friction between the block & the surface.

Explanation:

You might be interested in
A particle moving along the x-axis has a position given by m, where t is measured in s. What is the magnitude of the acceleratio
8090 [49]

Question:

A particle moving along the x-axis has a position given by x=(24t - 2.0t³)m, where t is measured in s. What is the magnitude of the acceleration of the particle at the instant when its velocity is zero

Answer:

24 m/s

Explanation:

Given:

x=(24t - 2.0t³)m

First find velocity function v(t):

v(t) = ẋ(t) = 24 - 2*3t²

v(t) = ẋ(t) = 24 - 6t²

Find the acceleration function a(t):

a(t) = Ẍ(t) = V(t) = -6*2t

a(t) = Ẍ(t) = V(t) = -12t

At acceleration = 0, take time as T in velocity function.

0 =v(T) = 24 - 6T²

Solve for T

T = \sqrt{\frac{-24}{6}} = \sqrt{-4} = -2

Substitute -2 for t in acceleration function:

a(t) = a(T) = a(-2) = -12(-2) = 24 m/s

Acceleration = 24m/s

4 0
3 years ago
What is the degree of overall satisfication a person gets from life called?​
Alexus [3.1K]

Answer:

I remember learning about this in health class. I believe the answer is quality of life.

Explanation:

5 0
3 years ago
Which statement correctly explains mechanical advantage?
Shtirlitz [24]
I'm not entirely sure but I would think it's A.
4 0
3 years ago
A student has a small metal sphere that hangs from an insulating string. The student, in seeking to determine the charge on the
Leokris [45]

Answer:

the answer the correct one is c

Explanation:

Electric charges of different signs attract and those of the same sign repel. In addition, there are two types of insulating bodies, where the loads are fixed (immobile) and metallic (with mobile loads.

Let's analyze the situation presented

* A rod with positive approaches and the sphere is attracted, so the charge on the sphere is negative

* A rod with a negative charge approaches and the sphere is attracted, therefore the charge of the sphere must be positive.

For this to happen, the sphere must be unloaded and the charge that creates the phenomenon are induced charges because the mobile charges of the same sign as the sphere are repelled.

when checking the answer the correct one is c

8 0
2 years ago
The resource speaks of the atmosphere as if it were living, in the sense that as the earth's surface is heated by the light from
Shtirlitz [24]

Explanation:

The uneven heating causes temperature differences, which in turn cause air currents (wind) to develop, which then move heat from where there is more heat (higher temperatures) to where there is less heat (lower temperatures). The atmosphere thus becomes a giant "heat engine", continuously driven by the sun.

Wind is the result of pressure changes in the atmosphere due to temperature.

6 0
3 years ago
Other questions:
  • Which surface has more friction <br>A. an ice rink<br>B. a grassy field <br>C. a paved road​
    11·1 answer
  • Phase, color, and ductility are all examples of what type of property?
    7·1 answer
  • I NEED HELP BADLY
    8·1 answer
  • What is the effect of changing the wire in a circuit from a straight thick wire to a straight thin wire?
    10·1 answer
  • Where would you expect to have more touch receptors: on the palm of your hand or on the back of your hand? Explain your reasonin
    15·1 answer
  • Three negative point charges q1 =-5 nC, q2 = -2 nC and q3 = -5 nC lie along a vertical line. The charge q2 lies exactly between
    8·1 answer
  • Why are temperatures of the currents generally colder at the poles than the equator?
    10·1 answer
  • Which of the following is NOT a function of the skeletal system?
    13·2 answers
  • How is the blance between oxygen and carbon dioxide maintained the atmosphere ?​
    5·1 answer
  • A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the rocket
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!