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
antiseptic1488 [7]
3 years ago
9

A compact disc has a radius of 6 centimeters.

Physics
2 answers:
Vika [28.1K]3 years ago
5 0
Circumference is 2\pi{r}=37.7 (approx.)
Speed is 4 times that. That is, 150.8 cm/s or 1.508 m/s.
If we get a point at distance 3 cm, we take the radius half of that. The circumference also gets half, so does the linear speed. We get 0.754 m/s or 75.398 cm/s.
alex41 [277]3 years ago
5 0

Answer:75.389

Explanation:

You might be interested in
What is the role of the neutral wire
lions [1.4K]

Answer:

The neutral wire is often confused with ground wire, but in reality, they serve two distinct purposes. Neutral wires carry currents back to power source to better control and regulate voltage. Its overall purpose is to serve as a path to return energy.

5 0
2 years ago
Which of the following is always true about the particles that make up matter? A. They can only be found in solid substances. B.
Neko [114]
B.They are too small to be seen with only our eyes
4 0
3 years ago
Read 2 more answers
It is important to wear protective equipment in both practice and games.
Ede4ka [16]

Answer:

OT

It is important to wear protective equipments during games and practices.

Explanation:

Practice is a review of what is about to happen in some time to come and with practice ,the future can be trusted.

During practice it is very important to use protective gears or equipments because without them, injuries and accidents are liable to occur.

During the major game it is also important to prevent accidents or big injuries as the equipments protect each vital part of the body.

4 0
3 years ago
What is the number of complete oscillations of a wave per second
Ira Lisetskai [31]

I believe the term Frequency is what you are looking for.  

8 0
3 years ago
Read 2 more answers
A weightlifter raises a 50kg weight to a height of 2m in 2 minutes. What was the power spent by the weightlifter?
belka [17]

Answer:

117.72kW

Explanation:

Given data

Mass m= 50kg

height x = 2m

time taken = 2 minutes= 129 seconds

let us find the work done

WD= force * distance

WD= mgx

WD= 50*9.81*2

WD= 981 Joules

Let us find the power

Power= work * time

Power= 981*120

Power= 117720

Power= 117.72 kW

Hence the power spent is 117.72kW

8 0
3 years ago
Other questions:
  • Which of the following is the best reason that scientific models are used? (1 point)
    9·2 answers
  • 2NaOH + H2SO4 → Na2SO4 + H2O
    7·2 answers
  • The space shuttle fleet was designed with two booster stages. if the first stage provides a thrust of 53 kilo-newtons and the sp
    6·1 answer
  • HELP THIS IS LATE How does the size and temperature of the Sun compare to other stars in the Milky Way galaxy?
    13·1 answer
  • Use complete sentences to differentiate between acids and bases on the basis of their behavior when dissolved in water Give an e
    12·1 answer
  • What is the value of the impulse obtained from the graph?
    5·1 answer
  • Which pairs of angles in the figure below are verticals angles ? check all that apply.
    14·1 answer
  • If a model ship is scaled to the ratio of 1:1,200, what size is the real ship
    14·1 answer
  • Name three characteristics of sound​
    10·1 answer
  • Two factors affect the amount of thermal energy in an object, The amount of space between its particles and The amount of motion
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!