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
kifflom [539]
1 year ago
11

8. assume pulleys and ropes are massless and frictionless. the surface with the 80 kg block has a coefficient of kinetic frictio

n
Physics
1 answer:
motikmotik1 year ago
8 0

The coefficient of kinetic friction ∝=9.81

Given that mass of block is 80kg .

Pulleys and ropes are massless and frictionless.

Coefficient of kinetic friction ∝ means the ratio of kinetic friction force of contacting surfaces to normal force .

Being a ratio parameter its unitless parameter.

F= mg\\\\F=\alpha N

from these equations

mg=\alpha N

Since there is no involvement of tension, g=∝

∝=9.81

To find more about coefficient of kinetic friction -

<u>brainly.com/question/19180015</u>

#SPJ4

You might be interested in
What is a precipitate?
Lunna [17]
Rain is considered a precipitate. Along with: drizzle, sleet, snow and hail.

hope this helps :)

7 0
4 years ago
Read 2 more answers
Assuming the bar has no weight where does the fulcrum (the top point of the tringle) need to be positioned for the two sides to
Inessa05 [86]

Fulcrum need to be positioned balanced with weight on both the sides following law of lever.

What is the physical law of the lever?

  • It is the foundation for issues with weight and balance. According to this rule, a lever is balanced when the weight multiplied by the arm on one side of the fulcrum, which serves as the pivot point for the device, equals the weight multiplied by the arm on the opposing side.
  • The lever is balanced, in other words, when the sum of the moments about the fulcrum is zero.
  • The situation in which the positive moments (those attempting to turn the lever clockwise) equal the negative moments is known as this (those that try to rotate it counterclockwise).
  • Moving the weights closer to or away from the fulcrum, as well as raising or lowering the weights, can alter the balance point, or CG, of the lever.

Learn more about the Fulcrum with the help of the given link:

brainly.com/question/16422662

#SPJ4

3 0
2 years ago
1
emmainna [20.7K]

Answer:

Increasing the mass and decreasing the distance between the two objects.

Explanation:

An increase in mass will cause them to have a stronger pull or gravity. A decrease of distance will make it easier for the objects to fall into each other because they would be further into the other objects area of influence.

3 0
3 years ago
Is there supposed to be a slit at the top of your adams apple?
Allushta [10]
No, there isn't. Please consult your doctor if this is the case with yours or someone you know.
7 0
3 years ago
PLEASE HELP!! ILL MARK BRAINLYEST!!
topjm [15]

Answer: True

Explanation:

Mass is the amount of matter in an object. Everything is made up of matter.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which process requires water to gain 2260 joules of energy per gram?
    6·1 answer
  • Which label identifies the statement: "Energy cannot be created or destroyed, but it can be converted or changed into different
    11·1 answer
  • Which pollution is a major problem resulting from the _______ industry in eastern Alberta, Canada
    5·1 answer
  • When the Voyager I and Voyager II spacecraft were exploring the outer planets, NASA flight controllers had to plan the crafts' m
    13·1 answer
  • A 0.10-kilogram piece of modeling clay is tossed
    13·1 answer
  • Find the change in internal energy, AU, if Q = 2.5 Joules and W = -30.5<br> Joules. *
    7·1 answer
  • A 25-kg child runs at 4.0 m/s and jumps onto a shopping cart and holds on for dear life. The cart has mass 15 kg. Assuming the c
    12·1 answer
  • 1. A 61-kg woman doing pull-ups lifts her body a distance of 0.32 meters in 1.8 seconds. What is the power provided by her bicep
    6·1 answer
  • Trey is testing a properly working resistor in a circuit and finds its value to be far lower than he expects what’s a likely err
    6·1 answer
  • A. You have a 10-volt parallel circuit, with 2 resistors on it. What is the voltage across the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!