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
Calculate the average force that must be exerted on a 0.145 kg baseball in order to give it an acceleration of 130 m/s^2. (round
r-ruslan [8.4K]

Answer:

18.9 <em>N or </em><em>19</em><em> N </em>rounded

Explanation:

m = 0.145 kg

a = 130 m/s^2

F = ma = (0.145 kg)(130 m/s^2) = 18.9 <em>N</em>

7 0
3 years ago
Read 2 more answers
Make a list of principle of lever.
vivado [14]

Answer:

The force applied to make the object move

8 0
2 years ago
Read 2 more answers
What is a lack of physical, social, or economic access to safe and nutritious foods called? A) famine B) food security C) food s
Anastaziya [24]
Food insecurity, because you are only lacking safe and nutritious food. It would be famine if you had no food whatsoever, and it would be a food shortage if you were lacking a small amount of ALL food
5 0
3 years ago
Read 2 more answers
A runner begins a race from the starting line and accelerates to a speed of 8.9 m/s. If it takes the runner 3 seconds to reach h
stellarik [79]

Answer:

i believe its 26.7

Explanation:

if the runner goes 8.9 m/s each second while accelerating for 3 seconds to reach top speed, the top speed would be 26.7 m/s

4 0
2 years ago
Read 2 more answers
A 9.5 V battery supplies a 3.5 mA current to a circuit for 7.0 h. Part A How much charge has been transferred from the negative
pychu [463]

Answer:

88.2 C

Explanation:

The current can be defined as the rate of flow of charge in a conductor.

The relation between charge current and time is given as

I = Q/T

I = current, Q= charge and T = time

that is ampere = coulomb / second

The amount of charge passed is from the negative to the positive terminal

shall be given by:

Q = I * t = 3.5mA * 7h * 3600s/h = 88.2 C

Note: take care of the units.  

7 0
3 years ago
Other questions:
  • How much potential energy does a 1kg mess have 10m off the ground?
    5·1 answer
  • How would a bar magnet orient itself relative to this planet's magnetic field
    9·2 answers
  • Identify the direction (from high to low, from low to high) that heat is normally transferred and give an example. (WILL GIVE BR
    12·1 answer
  • A computer software update involved updating the flash memory of a hardware component. The update failed. A phone technician sai
    11·1 answer
  • Three capacitors having capacitances of 8.40, 8.40, and 4.20μF, respectively, are connected in series across a 36.0-V potential
    9·1 answer
  • ___________ have the highest rates of star formation
    6·1 answer
  • Pls answer……………………..
    15·1 answer
  • A person with a near point of 85 cm, but excellent distant vision, normally wears corrective glasses. But he loses them while tr
    15·1 answer
  • Student 1 and student 2 talk about the speed of the truck
    7·1 answer
  • A plane accelerates to a velocity of 240 m/s in 11 s by which time it had traveled 1,400 m down the runway what were it average
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!