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
svlad2 [7]
3 years ago
14

An inclined plane of length 12m is used to pull a load of 3000N to height of 3m by applying an effort of 1000N. Calculate its MA

, VR and efficiency. Also, find the work done in the machine
Physics
1 answer:
vovikov84 [41]3 years ago
4 0

Answer:

MA  = 4

VR = 3

e = 0.75 or 75%

work = 12000 [J]

Explanation:

The mechanical advantage in an inclined plane is defined as the relationship between the length of the inclined plane and the height of the plane with respect to the ground.

MA = L/h

MA = 12/3 = 4

Now the real advantage can be calculated as the relationship between the weight of the body and the force being applied.

VR = W/F

VR = 3000/1000

VR = 3

Efficiency can be calculated as the relationship between the real mechanical advantage over the ideal mechanical advantage.

e = VR/MA

e = 3/4

e = 0.75 or 75%

The work is defined as the product of the force by the distance, therefore we have:

work = F*d

work = 1000*12

work = 12000 [J]

You might be interested in
Which type of transformer is found outside a residential house
KonstantinChe [14]
The type of transformer that is found outside a residential house is :
step-down transformer
In step-down transformer,  the secondary voltage is less than the primary voltage, which will reduce the voltage from the primary win.
7 0
3 years ago
Any collection of things that have some influence on one another can be thought of as a system. When we talk about a system, we
Katen [24]

Answer:

B

Explanation:

Its B

6 0
3 years ago
Calculate the wave length of a water wave with a speed of 20 m/s and a frequency of 2.5 Hz
12345 [234]

Wavelength of the water wave is 8 m

Explanation:

  • Wavelength measures the distance between two successive crests or troughs of the wave. It is given by the following equation

λ = v/f, where f is the frequency, v is the velocity of the wave

Here, v = 20 m/s and f = 2.5 Hz

⇒ λ = 20/2.5

      = 8 m

5 0
3 years ago
How do motors use energy? Do they convert electrical energy into mechanical energy OR mechanical energy into electrical energy?
Marysya12 [62]

Answer:

Motors convert electrical energy into mechanical energy

Explanation:

A motor uses electrical energy to create mechanical energy by creating magnetic fields causing the motor to spin. A generator is the opposite and converts mechanical into electrical by spinning a motor in a magnetic field.

3 0
2 years ago
Read 2 more answers
This roadblock is present when a person assumes they know what the other person is going to say and they are too impatient to wa
Westkost [7]

The answer is mindreading. Have a great day :)

6 0
3 years ago
Read 2 more answers
Other questions:
  • What holds the stars together in their galaxies? A. light B. orbits of the planets C. weight D. gravity
    9·2 answers
  • A football player is preparing to punt the ball down the field. He drops the ball from rest and it falls vertically 1.0 m down o
    13·1 answer
  • Two imaginary spherical surfaces of radius R and 2R respectively surround a positive point charge Q located at the center of the
    7·1 answer
  • An astronaut has left the International Space Station to test a new space scooter. Her partner measures the following velocity c
    10·1 answer
  • How do lone pairs of electrons affect the bond angle differently than electrons shared in a bond?
    9·1 answer
  • Two children want to balance horizontally on a seesaw. The first child is sitting one meter to the left of the pivot point locat
    9·1 answer
  • Force
    13·1 answer
  • An electron, starting from rest and moving with a constant acceleration, travels 2.0 cm in 5.0 ms. What is the magnitude of this
    8·1 answer
  • Two wave pulses pass each other on a string. The pulse traveling toward the right has positive amplitude, whereas the pulse trav
    14·1 answer
  • Can u help me pls....
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!