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
Lostsunrise [7]
3 years ago
6

A small, solid cylinder with mass = 20 kg and radius = 0.10 m starts from rest and rotates without friction about a fixed axis t

hrough its center of mass. A string is wrapped around the circumference of the cylinder and pulled using a constant force F. The resulting angular acceleration of the cylinder is 5.0 rad/s2. What length of string has unwound after 4.0 s, in meters? (The moment of inertia of the cylinder is 1 half M R squared.)
Physics
1 answer:
Mice21 [21]3 years ago
4 0

Answer:

Explanation:

angular acceleration α = 5 rad /s ²

θ = 1/2 α t² ,     θ is angle of rotation , t is time .

= .5 x 5 x 4²

= 40 rad .

θ = l / r , θ is angle formed , l is length unwound , r is radius o wheel .

l = θ x r

= 40 x .1

= 4 m .

You might be interested in
The atomic number of a nucleus decreases during which nuclear reactions?
Goryan [66]
A related type of beta decay actually decreases the atomic number of the nucleus when a proton becomes a neutron. Due to charge conservation, this type of beta decay involves the release of a charged particle called a “positron” that looks and acts like an electron but has a positive charge.
5 0
3 years ago
Which type of stress causes deformation that leads to earthquakes at converging plate boundaries?
ki77a [65]
The answer is <em>Compressional Stress
</em>

In geology, stress<span> is the force per unit area that is placed on a rock. ... This is called confining </span>stress<span>. Compression squeezes rocks together, </span>causing<span> rocks to fold or fracture (break). Compression is the most common </span>stress<span> at </span>convergent plate boundaries<span>.

I hope this helped!! Have a great day :D</span>
4 0
3 years ago
Light will not pass through a pair of polaroids when their axes are
Advocard [28]

Answer:

perpendicular

Explanation:

Polaroids are the material that is used to polarize the ray of light. Polaroid consists of microcrystals of herapathite.

When unpolarized light is passed through the Polaroid then ray appears to be of half the intensity and vibration of the ray in the single plane so, the emerged light is known as polarized light

Polaroids are used in the glasses to protect the eye from unwanted rays.

When Light does not pass through a pair of Polaroids then the axis of Polaroids will be perpendicular to the axis of ray.

8 0
3 years ago
Of the following systems, which contains the most heat?
densk [106]

Answer:d

Explanation:

Given systems are state of matter and do not contain any heat instead Heat is required to change Phase or raise the temperature of the particular system.

For example 600 kg of ice at 0^{\circ}C

Heat Required to convert it to water at 0^{\circ}C is

Q=m\times L

Where L=latent heat of Fusion =334 J/gm

Q=600\times 334\times 1000

Q=200.4 MJ

8 0
3 years ago
List two methods by which a community can save water. In your own words, explain how these methods would help to increase the ye
Oliga [24]
Conservation and Rain Water Tank. Through conservation, they can save water in their own houses by lessening the use of water in an unimportant purpose; they can turn of the faucet when it is not used; they can use their laundry water to clean the bathroom and there are more. Through Rain Water Tank, they can create this structure in order to collect rain water and store it in the tank then use it afterwards such as in watering the plants.
8 0
3 years ago
Other questions:
  • Is the following equation balanced?<br><br> 2Al + 3NiBr2 AlBr3 + 3Ni<br><br> yes<br> no
    12·2 answers
  • The displacement is a straight line from the starting point to the finish in a ____ direction
    9·1 answer
  • What would happen if an automobile moving at a high speed suddenly comes to a stop? How does this relate to Newton's laws and wh
    13·1 answer
  • The chicken's eggs are fertilized interally or externally
    6·1 answer
  • Where did the gold of the Inca civilization come from?
    6·1 answer
  • Which statement describes a property of a proton?
    14·1 answer
  • Are killer whales warm blooded.
    9·1 answer
  • Which of these structures is an architect most likely to design?
    12·2 answers
  • Determine the weight of a 1350 kg rock as it falls off a cliff.
    14·1 answer
  • whirl a rock at the end of a string and it follows a circular path. if the string breaks, the tendency of the rock is to
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!