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
kobusy [5.1K]
2 years ago
8

A boxed 14.0 kg computer monitor is dragged by friction 5.50 m up along the moving surface of a conveyor belt inclined at an ang

le of 36.9 ∘ above the horizontal. The monitor's speed is a constant 2.30 cm/s.
Physics
1 answer:
adell [148]2 years ago
8 0

Answer:

A boxed 14.0 kg computer monitor is dragged by friction 5.50 m up along the moving surface of a conveyor belt inclined at an angle of 36.9 ∘ above the horizontal. The monitor's speed is a constant 2.30 cm/s.

how much work is done on the monitor by (a) friction, (b) gravity

work(friction) = 453.5J

work(gravity) = -453.5J

Explanation:

Given that,

mass = 14kg

displacement length = 5.50m

displacement angle = 36.9°

velocity = 2.30cm/s

F = ma

work(friction) = mgsinθ .displacement

                      = (14) (9.81) (5.5sin36.9°)

                       = 453.5J

work(gravity)

= the influence of gravity oppose the motion of the box and can be pushing down, on the box from and angle of (36.9° + 90°)

= 126.9°

work(gravity) = (14) (9.81) (5.5cos126.9°)

                      = -453.5J

You might be interested in
Samantha is viewing a real image formed by a lens of a diamond ring. Which must be true about the image?
Ad libitum [116K]
<span>It could not be captured on film.  is the answer</span>
4 0
3 years ago
Read 2 more answers
You apply a horizontal force of 25N to push a shopping cart across the parking lot at a constant velocity. a) what is the net fo
AlekseyPX

(a) The net force on the shopping cart is zero.

(b) The the force of friction on the shopping cart is 25 N.

(c) When same force is applied to the shopping cart on a wet surface, it will move faster.

<h3>Net force on the shopping cart</h3>

The net force on the shopping cart is calculated as follows;

F(net) = F - Ff

where;

  • F is the applied force
  • Ff is the frictional force

ma = F - Ff

where;

  • a is acceleration of the cart
  • m is mass of the cart

at a constant velocity, a = 0

0 = F - Ff

F(net)  = 0

F = Ff = 25 N

Net force is zero, and frictional force is equal to applied force.

<h3>On wet surface</h3>

Coefficient of kinetic friction of solid surface is greater than that of wet surface.

Since frictional force limit motion, when the frictional force is smaller, the object tends to move faster.

Thus, the cart will move faster on a wet surface due to decrease in friction.

Learn more about frictional force here: brainly.com/question/24386803

#SPJ1

4 0
2 years ago
develop a plan to test the hardness of a sample of feldspar using the following items glass plate copper penny and streak plate
Artemon [7]
Stroke then 3883 you choke <3333333333
6 0
2 years ago
If at 10m above the ground an object has 50J of Kinetic Energy, with 50J of Potential Energy. How high can the object travel?
steposvetlana [31]

Hi there!

\large\boxed{\text{B) 20 meters}}

We know that:

E_T = U + K

U = Potential Energy (J)

K = Kinetic Energy (J)

E = Total Energy (J)

At 10m, the total amount of energy is equivalent to:

U + K = 50 + 50 = 100 J

To find the highest point the object can travel, K = 0 J and U is at a maximum of 100 J, so:

100J = mgh

We know at 10m U = 50J, so we can solve for mass. Let g = 10 m/s².

50J = 10(10)m

m = 1/2 kg

Now, solve for height given that E = 100 J:

100J = 1/2(10)h

100J = 5h

<u>h = 20 meters</u>

3 0
2 years ago
Which of the following units is the SI unit of velocity? a. meter c. meter per second b. meter·second d. second per meter
enot [183]
C. meter per second

Velocity and speed share the same SI unit.
5 0
2 years ago
Other questions:
  • What term is given to a substance that can dissolve in a particular liquid?
    12·2 answers
  • Which statements describe a closed circuit? Check all that apply. Bulbs will shine. Bulbs will not shine. The circuit is incompl
    15·2 answers
  • How do you think the temperature difference between the beakers relates to the rate of heat transfer?
    12·1 answer
  • Earths tectonic plates move in response to convection
    11·1 answer
  • A ball is thrown vertically downwards at speed vo from height h. Draw velocity vs. time &amp; acceleration vs. time graphs. In t
    10·1 answer
  • Three point charges (some positive and some negative) are fixed to the corners of the same square in various ways, as the drawin
    14·1 answer
  • (a) Check all of the following that are correct statements, where E stands for γmc2. Read each statement very carefully to make
    14·1 answer
  • It's possible for a determined group of people to pull an aircraft. Drag is negligible at low speeds, and the only force impedin
    6·1 answer
  • An object is moving from north to south what is the direction of the force of friction of the object
    10·2 answers
  • What is the velocity of an object that travels a distance of 48m in 12s?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!