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
drek231 [11]
3 years ago
7

If an object weighs 80 Newtons, what force must be applied to the rope to raise the object when the mechanical advantage is four

?
Which formula would you use to solve this problem?
Physics
1 answer:
AnnyKZ [126]3 years ago
5 0
80 -4f(45.56 - 56) solve and get answer
You might be interested in
As the distance between two point charges is tripled, the electrostatic force between the charges will become
MatroZZZ [7]
Relation between electrostatic force and distance is inverse square i.e
     1
Fα ----
      r^2  

Hence if r is tripled, new electrostatic force will be 1/9 times old force.          
7 0
4 years ago
A bicycle wheel is rotating at 49 rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration
raketka [301]
In 9 sec, it increases the angular velocity by (0.45 x 9) rad/s which will give us 4.05 rad/s 
Now get the angular velocity and divide it 2pi = 4.05 by 2(pi) to give how many revolutions 4.05 rad is equivalent to = 0.6446 rps 
Them, multiply this by 60 to get it from rps to rpm increase (0.6446 x 60)=38.676 rpm 
Add this and the starting revolution frequency of 49 rpm to give: (49 rpm + 38.676 rpm) = 87.6760 rpm
6 0
4 years ago
Read 2 more answers
What has a greatest (most substantial/ most influential) effect on the strength of the force of
xxTIMURxx [149]

Answer:

The force of gravity effected by stream the was muscle in the earth.

Explanation:

It just was

4 0
3 years ago
Dissolving sodium chloride will
Nat2105 [25]
Water can dissolve salt<span> because the positive part of water molecules attracts the negative </span>chloride<span> ions and the negative part of water molecules attracts the positive </span>sodium<span> ions. The amount of a substance that </span>can dissolve<span> in a liquid (at a particular temperature) is called the </span>solubility<span> of the substance.</span>
3 0
4 years ago
Earth-orbiting astronauts feel weightless in space because _____. Choose all that apply. 1 point They are in free-fall motion. T
STALIN [3.7K]

Answer:

They are in free-fall motion.

Explanation:

The Earth orbiting astronauts are falling at an acceleration that is the same or greater than the acceleration due to gravity i.e., 9.81 m/s². If you are continuously falling at this rate then you will feel weightless.

This same effect is felt while going down in an elevator. When you down in an elevator you feel that you are lighter and feel that something is pushing you up. Earth-orbiting astronauts feel the same effect but the accelration is greater hence they feel weightless.

5 0
3 years ago
Other questions:
  • Tidal forces are gravitational forces exerted on different parts of a body by a second body. Their effects are particularly visi
    5·1 answer
  • A car is safely negotiating an unbanked circular turn at a speed of 25 m/s. The road is dry, and the maximum static frictional f
    7·1 answer
  • What are the differences between a magnetic and gravitational interaction
    13·1 answer
  • You hold a spherical salad bowl 50 cm in front of your face with the bottom of the bowl facing you. The salad bowl is made of po
    13·1 answer
  • Which of the following BEST explains how good body composition is attained?
    5·1 answer
  • What is a lever and mention its types<br>​
    6·1 answer
  • Kinetic energy of an object is quadrupled, momentum will change by what factor?
    13·1 answer
  • The potential energy of a 35 kg cannon ball is 14000 J. How high was the cannon ball to have this much potential energy?
    12·1 answer
  • At the end of an amusement park ride, it is desirable to bring a gondola to a stop without having the acceleration exceed 3 g. I
    7·1 answer
  • Starting with the general formulas for gravitational force and centripetal force, derive the relationship between speed (v) and
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!