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
Alexeev081 [22]
3 years ago
7

A 5.67 gram coin is placed on a record that is rotating at 33.3 rpm. If the coefficient of the static friction is 0.100, how far

from the center of the record can the coin be placed without having it slip off?
Physics
1 answer:
icang [17]3 years ago
8 0

Answer:

81 mm from the center

Explanation:

5.67g = 0.00567 kg

33.3 revolutions per minute = 33.3 (rev/min) * 2π (rad/rev) * (1/60) (min/sec) = 3.487 rad/s

The weight of the coin is product of mass and gravitational acceleration g = 9.81m/s2

W = mg = 0.00567 * 9.81 = 0.0556 N

Which is also the normal force of the record acting back on the coin to balance it.

Them the static friction is product of normal force and friction coefficient

F_f = N\mu = 0.0556*0.1 = 0.00556 N

For the coin to NOT slip off, its centripetal force should at most be equal to the static friction

F_c = 0.00556

a_cm = 0.00556 Newton's 2nd law

a_c = 0.00556 / 0.00567 = 0.981 m/s^2

The centripetal acceleration is the product of squared angular velocity and radius of circular motion

a_c = \omega^2r

r = \frac{a_c}{\omega^2} = \frac{0.981}{3.487^2} = 0.081m or 81 mm

You might be interested in
A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reach
natka813 [3]

The total number of revolutions made by the wheel is closest to is 28.2 revolutions. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

5 0
3 years ago
Read 2 more answers
A perpetual-motion machine can never be built because it is not possible to eliminate...
bazaltina [42]
The answer is:  [C]:  "elasticity" .
________________________________________
4 0
2 years ago
Read 2 more answers
1. Someone fires a 0.04 kg bullet at a block of wood that has a mass of 0.5 kg. (The block of wood is sitting on a frictionless
Maslowich
Since momentum is a vector quantity, take any direction as positive and other as negative. Answer won't change.

4 0
3 years ago
Read 2 more answers
Which type of relationship is formed when a megabat eats a fig and drops the
Alina [70]

The type of relationship formed when a megabat eats a fig and drops the seeds in a new location is COMENSALISM. It is an ecological interaction.

<h3>What is commensalism?</h3>

Commensalism is a type of ecological interaction in which one organism benefits (in this case, the tree)  and the other organism neither benefits nor harm (the megabat).

Mutualism is a type of ecological association in which both organisms benefit from such interaction.

Conversely, parasitism is a type of ecological interaction in which one organism benefits and the other organism is harmed.

Learn more about commensalism here:

brainly.com/question/16712254

3 0
2 years ago
A ________ detects the speed that a given device can handle and communicates with it at that speed
melisa1 [442]
Switch because look A switch detects the speed that given device can handle and communicates with it at that speed
4 0
3 years ago
Other questions:
  • A pen contains a spring with a spring constant of 257 N/m. When the tip of the pen is in its retracted position, the spring is c
    15·1 answer
  • an object is moving in a straight line with a constant acceleration initially it is traveling at 16 meters per second. 3 seconds
    8·1 answer
  • To apply the principle of superposition to overlapping waves, you should _____ of the individual waves.
    15·1 answer
  • Slick Willy is in traffic court (again) contesting a $50.00 ticket for running a red light. "You see, your Honor, as I was appro
    10·2 answers
  • A small metal cube measures 2.5 cm on one side. The mass of the cube is 1129.56 g. What is the density of the cube?
    9·1 answer
  • Which of these results in kinetic energy of an object?<br> position<br> motion<br> mass<br> volume
    9·2 answers
  • What is the frequency of a wave with a period of 8s?
    10·1 answer
  • Which scientist discovered the laws that determine the motion of a spring?
    9·1 answer
  • A wave is propagating from left to right in a medium. The particles in the medium are also vibrating from left to right. What ki
    7·1 answer
  • A screw having 50% efficiency is driven by a rod and 25 cm. The pitch of the screw is 1/10cm Calculate velocity ratio and mechan
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!