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
ioda
3 years ago
8

it takes 560s for a runner to complete one circular lap, moving at a speed of 6.00 m/s. what is the radius of a track?

Physics
1 answer:
Lostsunrise [7]3 years ago
4 0

Answer:

534.8 meters

Explanation:

Use T=(2*pi*r)/v

560=(2*pi*r)/6

3360=2*pi*r

1680=pi*r

534.8 meters=radius

You might be interested in
When two systems in contact are not at the same temperature, _____ occurs.expansionheat flowfrictionevaporation
Murljashka [212]

Heat flow occurs when two systems in contact are not at the same temperature.

What is heat flow?

  • when two bodies of different temperatures are in contact, heat flow takes place.
  • Heat flows till the two bodies in contact achieve equilibrium.
  • To achieve equilibrium, heat flows from hotter bodies to colder bodies.
  • There is no heat flow after achieving the state of equilibrium because the amount of heat flow from one body to the other is the same.

For more information, please visit: brainly.com/question/11297584?referrer=searchResults

#SPJ4

8 0
1 year ago
How does the centripetal force depend on speed, radius and the revolving mass?
Mnenie [13.5K]

Answer:

Mass velocity and radius are all related to centripetal force

Explanation:

By frequency of its rotation and the radius of the circular path along which objects moves

6 0
3 years ago
A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls
nekit [7.7K]

Given:

density of air at inlet, \rho_{a} = 1.20 kg/m_{3}

density of air at inlet, \rho_{b} = 1.05 kg/m_{3}

Solution:

Now,

\dot{m} = \dot{m_{a}} = \dot{m_{b}}

\rho_{a} A v_{a} = \rho _{b} Av_{b}                        (1)

where

A = Area of cross section

v_{a} = velocity of air at inlet

v_{b} = velocity of air at outlet

Now, using eqn (1), we get:

\frac{v_{b}}{v_{a}} = \frac{\rho_{a}}{\rho_{b}}

\frac{v_{b}}{v_{a}} = \frac{1.20}{1.05} = 1.14

% increase in velocity = 1.14\times 100 =114%

which is 14% more

Therefore % increase in velocity is 14%

5 0
3 years ago
Read 2 more answers
Throw a paper ball towards a hard wall.
Len [333]
The answer is d hope this helps
7 0
3 years ago
State the law of conservation of machine​
laiz [17]

Answer:

law of conservation of energy is that a perpetual motion machine of the first kind cannot exist, that is to say, no system without an external energy supply can deliver an unlimited amount of energy to its surroundings

Explanation:

Hope it helps.

Mark me as Brainliest plz!

3 0
2 years ago
Other questions:
  • Describe each of the three types of hazardous weather forecast?? Please tell ne the answer
    10·1 answer
  • you cover 10 meters in a time of 1 second .Is your speed the same if you cover 20 meters in 2 seconds?
    10·1 answer
  • Which of the following is least likely to form bonds?
    9·1 answer
  • What is the resultant force acting on 500g object accelerating at 5m/s2
    14·1 answer
  • How does the nucleus of an atom change when it emits an alpha or beta particle?
    12·1 answer
  • The higher the value of the coefficient of friction, the _______ the resistance to sliding.
    6·2 answers
  • How does a battery supply electrical energy to a circuit?
    11·2 answers
  • This equation goes with which law?
    10·1 answer
  • A 6 cm object is 8 cm from a convex lens that has a focal length of 2.7 cm. The image is 4 cm from the lens.
    6·2 answers
  • The observed a value for the diameter of a Hydrogen atom is 10.1 nm and the accepted value for this is 10 nm. Was you observatio
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!