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
tatyana61 [14]
3 years ago
13

Four discs are spinning at constant angular velocity. Four ideantical balls are dropped on the discs at different distances from

the center. The balls are dropped from rest and stick to the disc. Rank the discs in terms of final angular velocity from lowest to highest.
Physics
1 answer:
Arlecino [84]3 years ago
8 0

Answer: They will have equal final angular velocity.

Explanation:

Since the discs starts from rest and rotates about a fixed axis, they are subject to a constant net torque. The work done by the torque during the second revolution is as the work done during the first revolution.

The four disc will turn through equal angles in equal times.

You might be interested in
Which statement is TRUE? Question 5 options: Waves travel at different speeds through different materials. Wave speed depends on
Sunny_sXe [5.5K]

Answer:

Waves move through different vmaterials

5 0
2 years ago
Read 2 more answers
Do you think an observer on another planet in the solar system might see eclipses
artcher [175]

Answer:

Yes

Explanation:

Eclipses: Eclipses are also known as game of shadows where one object comes between the star(light source) and another object in a straight line such that the shadow of one object falls on other object. This can occur when the apparent size of the star and the object is almost same.

Talking about the Earth, the geometry is such that the Moon and the Sun are of same apparent size as seen from the Earth. Thus Lunar and Solar eclipse can be seen from the Earth. If we were to go on any other planet the same phenomenon can be seen provided the apparent size of moon and the Sun from that planet is same.

We have seen and recorded many such eclipses on Jupiter. These are from the perspective of Earth. When the moons of Jupiter comes exactly between the Sun and Jupiter the shadow of moon will fall on Jupiter. The places where the shadow falls, one will see a solar eclipse.

8 0
3 years ago
How much time does it take for a car to accelerate from 3.44 m/s to 20.9 m/s if the average acceleration is 6.00 m/s^3
miv72 [106K]

Do you go to GA Connexus Academy??

4 0
3 years ago
Read 2 more answers
A typical running track is an oval with 74-mm-diameter half circles at each end. A runner going once around the track covers a d
lisabon 2012 [21]

The centripetal acceleration a is 4.32 \times 10^-4 m/s^2.

<u>Explanation:</u>

The speed is constant and computing the speed from the distance and time for one full lap.

Given, distance = 400 mm = 0.4 m,       Time = 100 s.

Computing the v = 0.4 m / 100 s

                         v = 4 \times 10^-3 m/s.

radius of the circular end r = 37 mm = 0.037 m.

            centripetal acceleration a = v^2 / r

                                                        = (4 \times 10^-3)^2 / 0.037

                                                    a = 4.32 \times 10^-4 m/s^2.

6 0
3 years ago
Which part of earths surface has the greatest rotational speed
Anni [7]
Every point on the surface must have the same rotational speed.
Otherwise some places would rotate away from other places.

If the next block of your city rotated faster than the block that you live on,
then you could sit at home, look out the window, and watch your school
rotate past your house.

The map of the continents on the Earth would change constantly. 
6 0
3 years ago
Other questions:
  • Which of the following is a good electrical conductor?
    9·1 answer
  • Provides some background for this problem. a ball is thrown vertically upward, which is the positive direction. a little later i
    11·1 answer
  • A car travels with a velocity 16m/s and accelerates 5m/s^2. Calculate the final velocity when it has travelled 36.9m
    14·1 answer
  • Humid air breaks down (its molecules become ionized) in an electric field of 4.99 x 10^6 N/C. In that field, what is the magnitu
    11·1 answer
  • Sound waves are a longitudinal wave that have a speed of about 340 m/s when traveling through room temperature air. What is the
    9·1 answer
  • A scientist hypothesizes that the temperature at which an turtle's egg is incubated
    11·1 answer
  • 1. The photon energy for light of wavelength 500 nm is approximately (Show your work).
    9·1 answer
  • Blending three primary colors of light
    13·1 answer
  • Used to measure temperature
    12·1 answer
  • Which of the following is the most dense?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!