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
Marina CMI [18]
3 years ago
14

You exert a 100-N force on a pulley system to lift 300-N. What is the mechanical advantage of this system? How many sections of

rope support weight?
Physics
1 answer:
Andrei [34K]3 years ago
8 0

Answer:

Mechanical advantage = 3

Explanation:

You exert a 100-N force on a pulley system to lift 300-N.

The mechanical advantage of the system is given by the ratio of output force to the input force.

Here, output force = 300 N and input force = 100 N

Mechanical advantage,

m=\dfrac{300}{100}\\\\m=3

Mechanical advantage is 3 it means that there are 3 sections of rope support. Hence, this is the required solution.

You might be interested in
. A stationary mass explodes into two parts of mass 4 kg and 40 kg . If the K.E of larger mass is 100 J . The K.E of small mass
alisha [4.7K]

Answer:

10J

Explanation:

KE = (1/2)mv²

100J = (.5)(40kg)v²

v²=(100J)/(20kg)

v²= 5

KE = 5(.5)(4kg)

KE = 10J

3 0
3 years ago
Which of the following is NOT true regarding the far side of the moon:
frutty [35]
It contains no large maria
8 0
3 years ago
The particles of a substance stay close together but slide past one another as they move when thermal energy is added to the sub
Katen [24]

Answer: A liquid to gas

Explanation: I just got it wrong :(

6 0
3 years ago
Which of the following is a form of potential energy? O A. Sound energy O B. Elastic energy O C. Light energy O O O D. Kinetic e
olga55 [171]

Answer:

O C. Light energy

Explanation:

it conducts energy in it and is an energy itself.

6 0
3 years ago
A box of unknown mass is sliding with an initial speed vi = 4.70 m/s across a horizontal frictionless warehouse floor when it en
malfutka [58]

Here Change in Kinetic Energy = Work Done by Friction

Therefore, substituting the given values to the equation, we get

0.5 * m * (vFinal^2 - vInitial^2) = µ m g * d

Therefore

0.5*( 5.90^2 - Vfinal^2 ) = 0.100*9.8*2.10

Therefore

vfinal = 5.54 m/sec

<span> </span>

8 0
3 years ago
Other questions:
  • A ball is whirled on the end of a string in a horizontal circle of radius R at constant speed v. Complete the following statemen
    11·1 answer
  • A speeding car collides with an unlucky bug flying across the road
    5·2 answers
  • A uniform rod of length L rests on a frictionless horizontal surface. The rod pivots about a fixed frictionless axis at one end.
    14·1 answer
  • If you could visit Pangaea, what animals would you most likely find there?
    8·2 answers
  • What happens to a muscle when you exercise it?
    6·2 answers
  • An airplane is flying at 635 km per hour at an altitude of 35,000 m. What is its velocity?
    13·1 answer
  • Consider a wod raft with length = 5.0m, width 3.0 m and height = 1.0m, with density =600kg/m^3. There is an object of a mass of
    13·1 answer
  • A car drives at a constant speed of 45km in 20mn. The speed of the car is..?​
    12·1 answer
  • A firefighter is using a hose and the flow rate of the water leaving the hose is 0.032 m3/s. At the end of the hose, the nozzle
    13·1 answer
  • Verify the following equations:3² ×3³=243
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!