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
prohojiy [21]
3 years ago
5

A coin is placed 29 cm from the center of a horizontal turntable, initially at rest. The turntable then begins to rotate. When t

he speed of the coin is 120 cm/s (rotating at a constant rate), the coin just begins to slip. The acceleration of gravity is 980 cm/s^2 . What is the coefficient of static friction between the coin and the turntable?
Physics
1 answer:
kobusy [5.1K]3 years ago
5 0

Answer:

The coefficient of static friction between the coin and the turntable is 0.51

Explanation:

at the time of the slip:

centripetal force = frictional force

mv^2/r = x*m*980

v^2/r = 980x

x = v^2/980r

  = [(120)^2]/[980*29]

  = 0.51

Therefore, The coefficient of static friction between the coin and the turntable is 0.51

You might be interested in
The natural enzyme reaction in food slowly breaks it down and eventually causes it to spoil. what 2 things halt this enzyme reac
ollegr [7]

Answer: the answer is storing properly in refrigeration.

Explanation:

4 0
2 years ago
Read 2 more answers
Review please help.
iragen [17]

Answer:

1 and 3

Explanation:

because they are going up from 0

7 0
3 years ago
How do you calculate mass using Newton’s 2nd Law?
deff fn [24]
The 2nd Law says F=ma, where F is the force in Newtons, m is mass and a is acceleration.  Earth's gravity is an acceleration, 9.8m/s^2.  So you can solve the equation for mass, m=F/a, or m=F/9.8 where you've measured the force (weight) in Newtons.
5 0
3 years ago
Read 2 more answers
The downward pull of an object due to gravity is the objects _______?
elena-s [515]
The downward pull of an object due to gravity is the object’s weight.
8 0
3 years ago
Read 2 more answers
A 535 kg roller coaster car began at rest at the top of a 93.0 m hill. Now it is at the top of the first loop-de-loop. This roll
Nikitich [7]
The correct answer is <span>The car has both potential and kinetic energy, and it is moving at 24.6 m/s.</span>
3 0
2 years ago
Other questions:
  • The Lyman series comprises a set of spectral lines. All of these lines involve a hydrogen atom whose electron undergoes a change
    9·1 answer
  • What element has 81 protons in the nuclei of atoms
    8·1 answer
  • This chart shows the global temperature anomaly (the difference of the expected temperature and the actual temperature) over a s
    8·2 answers
  • A block sliding on a horizontal surface is attached to one end of a horizontal spring with spring constant k=432 Nm ; the other
    13·1 answer
  • What is the net force acting on a golf car travelling at a constiant speed of 5 mph?
    13·2 answers
  • Points of maximum amplitude on a standing wave are called
    15·1 answer
  • Man start to moves from point A (Initial Point) to Point B (Final Point) in a given
    10·1 answer
  • A ball of mass 2 kg is moving with a speed of +6 m/s directly towards
    10·1 answer
  • Determine the acceleration of a boat with a final speed of 120 m/s after 30 seconds.
    5·2 answers
  • Answer ASAP and only if you know its correct <br> this is science btw
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!