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
Elden [556K]
3 years ago
9

A block and tackle pulley system of 6 pulley uses 300N to overcome 1200N.find efficiency

Physics
1 answer:
Fittoniya [83]3 years ago
4 0

Answer:

66.7%

Explanation:

There are 6 pulleys, so the mechanical advantage is 6.

The theoretical force needed to overcome 1200 N is therefore:

1200 N / 6 = 200 N

The actual force is 300 N.  So the efficiency is:

200 N / 300 N × 100% = 66.7%

You might be interested in
How many minutes does light need to travel from the sun to Jupiter?
nydimaria [60]

Light travels at a speed of 299,792 kilometers per second; 186,287 miles per second

Mercury it will take 193.0 seconds(3.2 minutes)

Venus it will take 360.0 seconds(6.0 minutes)

Earth it will take 499.0 seconds(8.3 minutes)

Mars  It will take 759.9 seconds(12.6 minutes)

Jupiter  It will take 2595.0 seconds(43.2 minutes)

Saturn it will take 4759.0 seconds(79.3 minutes)

Uranus it will take 9575.0 seconds(159.6 minutes)

Neptune it will take 14998.0 seconds(4.1 hours)

Pluto  it will take 19680.0 seconds(5.5 hours)

3 0
3 years ago
A ball is thrown into the air with 100 J of kinetic energy, which is transformed to gravitational potential energy
goblinko [34]

Answer:

Air resistance

Explanation:

Despite the law of conservation of energy stating that energy can neither be created nor destroyed but can only be transformed from one state to another, some energy is usually lost in the process of transformation and its majorly attributed to frictional loss. Friction opposes normal movement hence in air, air resistance tends to reduce the original energy compared to the initial. That is why the final energy in this case is slightly less than the original energy.

3 0
3 years ago
What is your worldview? Explain?
zimovet [89]

My worldview is someone who doesn't exist. Someone who isn't real but i want them to BE real. It's not possible to have someone who is alike you. Who is there for yo when you need them

5 0
2 years ago
Landon attends an early childhood program that is located at a community center which also runs an adult care program.
Ira Lisetskai [31]
Good for Landon. What’s the question?
3 0
2 years ago
6. (a) Suppose the earth is revolving round the sun in a circular orbit of radius one b astronomical unit (1.5% 10 km). Find the
kkurt [141]

Answer:

tough

ques

Explanation:

5 0
2 years ago
Other questions:
  • What is 9/15 equal to
    10·2 answers
  • Which particle is not part of an atom?
    10·2 answers
  • 20 Point Offer for Full Answer.
    15·1 answer
  • Is weight the amount of friction force applied by the earth?
    14·1 answer
  • 1. Monique is nine weeks into her pregnancy, and she had an appointment with her doc tor today. She is very happy and excited be
    7·1 answer
  • Photovoltaic technology is most commonly used to generate electricity using what type of power?
    8·1 answer
  • A car goes 4 south and 3 m East. Find the resultant vector using Tip-Tail method.
    10·1 answer
  • What is the mechanical advantage of a wedge that is 2 inches at its widest part and has a sloped side with a length of 10 inches
    12·1 answer
  • A motor exerts a 280 N force and does 1220 J
    9·1 answer
  • A cylindrical region of radius R contains a uniform magnetic field parallel to its axis. The field is zero outside the cylinder.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!