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
LenaWriter [7]
2 years ago
11

A 9.0 kg potted plant slides down a 25.0º incline with an acceleration of 2.4 m/s2. What is the coefficient of kinetic friction

between the potted plant and the incline?
Physics
1 answer:
mezya [45]2 years ago
7 0

Answer:

0.196

Explanation:

According to Newton's second law

\sumFx = ma

Fm-Ff = ma

Fm is the moving force

Ff is the frictional force

m is the mass = 9kg

a is the acceleration = 2.4m/s²

Fm = Wsin theta

Fm = 9(9.8)sin25°

Fm = 37.28N

Ff is the frictional force = nmgcos theta

Ff = n(9)(9.8)cos25°

Ff = 79.94n

Substitute the given values into the formula

37.28-79.94n = 9(2.4)

-79.94n = 21.6-37.28

-79.94n = -15.68

n = 15.68/79.94

n = 0.196

Hence the coefficient of kinetic friction between the potted plant and the incline is 0.196

You might be interested in
A 60 N force is applied over a distance of 15 m. How much work was done?
GuDViN [60]

Answer:

900J

Explanation:

w =f×s

60×15

=900J

thus the k.e of the body is 900j

3 0
2 years ago
You are moving at a speed 2/3 c toward randy when randy shines a light toward you. at what speed do you see the light approachin
yarga [219]
I see the light moving exactly at speed equal to c.

In fact, the second postulate of special relativity states that:
"The speed of light in free space has the same value c<span> in all inertial frames of reference."
</span>
The problem says that I am moving at speed 2/3 c, so my motion is a uniform motion (constant speed). This means I am in an inertial frame of reference, so the speed of light in this frame must be equal to c.
3 0
2 years ago
A 50.0-kg crate is being pulled along a horizontal smooth surface. The pulling force is 10.0 n and is directed 20.0° above the h
steposvetlana [31]

Answer:

0.188 m/s^2

Explanation:

Assuming the crate does not lift above the ground and remains along the floor, then its acceleration will be in the horizontal direction. Therefore, we can use Newton's second law to find its acceleration:

F_x = ma_x

where

F_x is the net force on the crate along the x-direction

m is the mass of the crate

a_x is the acceleration

Here we have:

m = 50.0 kg

F_x = F cos \theta = (10.0 N)(cos 20.0^{\circ})=9.4 N is the component of the pulling force along the horizontal direction

Solving for the acceleration,

a_x = \frac{F_x}{m}=\frac{9.4}{50.0}=0.188 m/s^2

6 0
3 years ago
Aristotle believed that everything on Earth is made of one of only 4 types of material: earth, air, water, or fire.
yuradex [85]
This is True.
Hope this helps.
6 0
3 years ago
Read 2 more answers
Describe how visible light is used with solar photovoltaic panels to produce electricity
padilas [110]
Solar panels convert the sun's light into usable solar energy using N-type and P-type semiconductor material. When sunlight is absorbed by these materials, the solar energy knocks electrons loose from their atoms, allowing the electrons to flow through the material to produce electricity.
6 0
2 years ago
Other questions:
  • How each graph represents the information.
    15·1 answer
  • The energy an object has as a result of it being in motion is called? What kind of energy?
    7·2 answers
  • In an atom, the electrons travel outside the____.
    9·1 answer
  • Atomic physicists usually ignore the effect of gravity within an atom. To see why, we may calculate and compare the magnitude of
    7·1 answer
  • A person, with a mass of 50.0 kg, stands on a weighing scale in a lift which is moving
    5·1 answer
  • How is mass of the body measured ? Define one second ?
    10·1 answer
  • A 10 gram ball is rolling at 3 m/s. What is the energy the ball has?
    11·1 answer
  • Please help !!!!! I’ll give brainliest !
    7·1 answer
  • 1. Describe what conversation of momentum means.
    13·2 answers
  • Defference between biotic and abiotic components​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!