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
Please answer with an explanation.
nydimaria [60]

Answer:

A, D, E

Explanation:

The force of Earth's gravitational pull is equal to the mass of the object times the acceleration due to gravity:

W = mg

The greater the mass, the greater the pull.  A truck, bicycle, and camel all have greater mass than a baseball.

3 0
3 years ago
Can anyone please explain this point with an example. I have presentation tomorrow.
r-ruslan [8.4K]

Explanation:

Efficiency is a way of describing the amount of useful ​output​ a process or machine can generate as a percentage of the ​input​ required to make it go. In other words, it compares how much energy is used to do work versus how much is lost or wasted to the environment. The more efficient the machine, the less energy wasted.

For example, if a heat engine is able to turn 75 percent of the fuel it receives into motion, while 25 percent is lost as heat in the process, it would be 75 percent efficient. Out of the original 100 percent of the fuel, 75 percent was output as useful work.  

the equation:

energy efficiency =useful output energy/total input energy

8 0
2 years ago
Suppose an element had an atomic number of 52. How many protons would that element have?
frutty [35]
The element would have 52 protons because atomic number gives protons.
4 0
2 years ago
Read 2 more answers
PLSSS HELP MEEEE
vekshin1

Answer:

Cu2+

Explanation:

7 0
3 years ago
Read 2 more answers
A two slit pattern is viewed on a screen 1.00m from the slits if the two third-order minima are 22.0 cm apart what is the width
Bingel [31]

Answer:

4.4 cm

Explanation:

Given:

Distance of the screen from the slit, D = 1 m

Distance between two third order interference minimas, x = 22 cm

Let's say, minima occurs at:

x_n = (n + \frac{1}{2}) \frac{wL}{d}

We have:

2x_2 = 2(2 + \frac{1}{2}) * \frac{w*22}{d}

Calculating further for the width of the central bright fringe, we have:

\frac{w}{d} = \frac{22}{5}

= 4.4 cm

Note: w in representswavelength

8 0
3 years ago
Other questions:
  • Water flows at speed v in a pipe of radius R. At what speed does the water flow through a constriction in which the radius of th
    10·1 answer
  • At the top of a roller coaster you have 90j of potential energy and 10 j of kinetic energy at the bottom of the roller coaster y
    13·1 answer
  • 7) A6 kg ball is thrown at 12 m/s. What is the momentum of the ball before it strikes a pin?
    15·1 answer
  • A physics student of mass 51.0 kg is standing at the edge of the flat roof of a building, 12.0 m above the sidewalk. An unfriend
    12·1 answer
  • What is diffrence between ammeter and voltmeter
    9·1 answer
  • If an object on a horizontal, frictionless surface is attached to a spring, displaced, and then released, it will oscillate. If
    8·1 answer
  • What kind of lens is found in both a magnifying glass and a microscope
    15·2 answers
  • Name at least two other viruses that are at all time lows due to vaccines.
    5·1 answer
  • Which material is a composite? A. gold B.silicon C.polycarbonate D.aluminum
    10·1 answer
  • It is made up of small particles
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!