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
Nastasia [14]
2 years ago
9

a disk of a radius 50 cm rotates at a constant rate of 100 rpm. what distance in meters will a point on the outside rim travel d

uring 30 seconds of rotation?​
Physics
1 answer:
vlabodo [156]2 years ago
8 0

Answer: 50π m ≈ 157 m

Explanation:

100 rev/min (2π rad/rev) / (60 sec/min) = 3⅓π rad/s

d = ωrt = 3⅓π(0.50)(30) = 50π m ≈ 157 m

You might be interested in
The corpus callosum is comprised of more than 200 million axons that connect the hemispheres of the brain. Please select the bes
mamaluj [8]

Hello, love! The answer is True, or T, on Edge2020.

Hope this helped!

~ V.

8 0
2 years ago
Read 2 more answers
A boy is exerting a force of 70 N at a 50-degree angle on a lawn mower. He is accelerating at 1.8 m/s2. Round the answers to the
charle [14.2K]

Answer:

are you in middle school

Explanation:

need more evendice

8 0
2 years ago
an Olympic runner leaps over a hurdle.if the runner initial vertical speed is 2.2m/s how much will the runners center of mass be
Snowcat [4.5K]
Supposing the runner is condensed to a point and moves upward at 2.2 m/s.
It takes a time = 2.2/g = 2.2/9.8 = 0.22 seconds to increase to max height. 
Now looking at this condition in opposite - that is the runner is at max height and drops back to earth in 0.22 s (symmetry of this kind of motion). 
From what height does any object take 0.22 s to fall to earth (supposing there is no air friction)? 
d = 1/2gt²= (0.5)(9.8)(0.22)²= 0.24 m
7 0
2 years ago
The light coming out of a concave lens:
torisob [31]
The light coming out of a concave lens will never meet.

So, the answer is A. will never meet.

Happy Studying! ^^
4 0
3 years ago
Read 2 more answers
How are lasers used to determine the distance from earth to the moon?
mezya [45]
A beam of laser is directed at a reflecting surface put on the moon when the beam of laser is reflected a receiver on the each measure the time since the beam was sent till it was received. Laser is simply light so it has constant velocity in vacuum ~ air  (c = 3 x 10^8 m/s)

to find the distance:

t : time measured between launching the beam and receiving it 

d : distance

d = ct 

5 0
2 years ago
Read 2 more answers
Other questions:
  • A ? watcher is a citizen who is paid by the parties to keep a watchful eye on the voters and the officials.
    14·2 answers
  • Operators must slow to no wake speed when within what distance of a u.s. naval vessel?
    11·2 answers
  • a metal sphere with a mass of 90 kg rolls along at 16m/s and strikes a stationary sphere having a mass of 140kg. the first spher
    14·1 answer
  • Which planet spins on it's side Uranus or neptune?
    8·2 answers
  • Reflections from a thin layer of air between two glass plates cause constructive interference for a particular wavelength of lig
    13·1 answer
  • Ethical behavior by therapists is important because
    11·2 answers
  • If you walk 3 kilometers in 30 minutes , what is the average speed in kilometers per hour?
    8·1 answer
  • A potato is launched from the ground at an 73 degree angle with a velocity of 48 m/s.
    9·1 answer
  • A machine which has an energy loss of 10% will have efficiency of​
    5·1 answer
  • The critical path is the sequence of activities that determine the latest date by which the project can be evaluated.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!