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
aleksley [76]
2 years ago
6

16. Olympic ice skaters are able to spin at about 5 rev/s.

Physics
1 answer:
Wittaler [7]2 years ago
5 0

Answer:

a)   w = 31.4 rad / s,  b)  a = 118.4 m / s²

Explanation:

a) let's reduce to the SI system

   w = 5 rev / s (2pi rad / 1 rev)

   w = 31.4 rad / s

b) the expression for the centripetal acceleration is

      a = v² / r

linear and angular variables are related

      v = w r

    we substitute

     a = w² r

     a = 31.4² 0.120

     a = 118.4 m / s²

You might be interested in
What is meaning of phase​
algol [13]

Answer:

phares

phares \\  \\ means \: a \: noun \:  \\  \\ i \: thnk \: so \:  \:

5 0
2 years ago
Read 2 more answers
The idea that species change over time is called
qaws [65]
The answer is evolution. When a specifies evolves over time they change and adapt to their environment.
4 0
3 years ago
Read 2 more answers
3. Discuss the main purpose of Experiment" Explain the greatest advantage of experiment in psychology?
Scrat [10]

Answer:

Social psychologists utilize experimental techniques to study how people are influenced by groups. Health psychologists rely on experimentation and research to better understand the factors that contribute to wellness and disease.

Explanation:

7 0
3 years ago
Estimate the total number of bacteria and other prokaryotes in the biosphere of the earth. (assume the bacteria are found to a d
Fofino [41]
Since the Earth is almost spherical in shape, we are actually to find first the volume of the spherical segment at a depth of 1,000 m. The radius of the Earth is 6,371,000 meters. The volume of a spherical segment is:

V = 1/3*πh²(3r - h)
Substituting the values and making sure the units is in mm,
V = 1/3*π(1000 m * 1000 mm/1 m)²[3(6,371,000 m * 1000 mm/1 m) - (1000 m * 1000 mm/1 m)]
V = 2×10²² mm³

Thus, the total amount of bacteria is:

2×10²² mm³ * 100 bacteria/1 mm³ = 2×10²⁴ bacteria
7 0
3 years ago
A good way to de-magnetize something is to___.
Dominik [7]

HEYA MATE

YOUR ANSWER IS <em><u>D.PLACE</u></em><em><u> </u></em><em><u>IT</u></em><em><u> </u></em><em><u>IN</u></em><em><u> </u></em><em><u>AN</u></em><em><u> </u></em><em><u>ELECTRI</u></em><em><u>C</u></em><em><u> </u></em><em><u>FIELD</u></em>

<em><u>BE</u></em><em><u>CAUSE</u></em><em><u> </u></em><em><u>IT </u></em><em><u>makes</u></em><em><u> sense you can use alternating current to remove magnetism</u></em>

4 0
3 years ago
Read 2 more answers
Other questions:
  • The wavelengths of light emitted by an excited atom are determined by the:
    11·2 answers
  • Which has a higher biotic potential, a pumpkin or a peach
    8·1 answer
  • Which circuit prevents the flow of current?
    8·2 answers
  • This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. The mag
    14·1 answer
  • A motorcyclist is traveling at 58.3 mph on a flat stretch of highway during a sudden rainstorm. The rain has reduced the coeffic
    7·1 answer
  • In case of collision of objects in two dimensions which statement is true after the collision?
    11·2 answers
  • What is volume?
    8·2 answers
  • What property of matter makes metal pots a good choice for heating food? A.Electrical conductivity B.Magnetic properties C.Solub
    13·1 answer
  • What is the velocity of a wave that has a frequency of 200 Hz and a<br> wavelength of 0.5m?
    15·1 answer
  • Alice builds another model to describe the movement of the particles of a substance after it changes state due to thermal energy
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!