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
Colt1911 [192]
3 years ago
8

A thin walled spherical shell is rolling on a surface. What

Physics
1 answer:
ExtremeBDS [4]3 years ago
8 0

Answer:

=\frac{1/3}{5/6} = 0.4

Explanation:

Moment of inertia of given shell= \frac{2}{3} MR^2

where

M represent sphere mass

R -sphere radius

we know linear speed is given as v = r\omega

translational K.E = \frac{1}{2} mv^2 = \frac{1}{2} m(r\omega)^2

rotational K.E = \frac{1}{2} I \omega^2 = \frac{1}{2} \frac{2}{3} MR^2 \omega^2

total kinetic energy will be

K.E = \frac{1}{2} m(r\omega)^2 + \frac{1}{2} \frac{2}{3} MR^2 \omega^2

K.E =\frac{5}{6} MR^2 \omega^2

fraction of rotaional to total K.E

=\frac{1/3}{5/6} = 0.4

You might be interested in
A long distance runner sees the finish line and accelerates at a rate in 1.2 m/s2 for
Nuetrik [128]

Answer: he did travel 15 meters.

Explanation:

We have the data:

Acceleration = a = 1.2 m/s^2

Time lapes = 3 seconds

Initial speed = 3.2 m/s.

Then we start writing the acceleration:

a(t) = 1.2 m/s^2

now for the velocity, we integrate over time:

v(t) = (1.2 m/s^2)*t + v0

with v0 = 3.2 m/s

v(t) = (1.2 m/s^2)*t + 3.2 m/s

For the position, we integrate again.

p(t) = (1/2)*(1.2 m/s^2)*t^2 + 3.2m/s*t + p0

Because we want to know the displacementin those 3 seconds ( p(3s) - p(0s)) we can use p0 = 0m

Then the displacement at t = 3s will be equal to p(3s).

p(3s) = (1/2)*(1.2 m/s^2)*(3s)^2 + 3.2m/s*3s = 15m

6 0
3 years ago
It is known as a basic unit of all living things.
andrezito [222]

hello, the answer is..

cell

4 0
2 years ago
How are kids made? my teacher asked us this question
Kazeer [188]
A single sperm and the mother's egg cell meet in the fallopian tube. When the single sperm enters the egg, conception occurs. The combined sperm and egg is called a zygote. The zygote contains all of the genetic information (DNA) needed to become a baby.
7 0
3 years ago
A charged sphere with 1 × 10 8 units of negative charge is brought near a neutral metal rod. The half of the rod closer to the s
jeyben [28]

Answer:

-4*10⁴ units.

Explanation:

As the metal rod was initially neutral (which means that it has the same quantity of positive and negative charges), after being close to the charged sphere, as charge must be conserved, the total charge of the metal rod must  still remain to be zero.

So, if due to the influence of the negative charge in the sphere, the half of the road closer to the sphere has a surplus charge of +4*10⁴ units, the charge on the half of the rod farther from the sphere must be the same in magnitude but of the opposite sign, i.e., -4*10⁴ units.

5 0
2 years ago
Which of the following is an exercise myth?
Margaret [11]
The answere is No pain, no gain
8 0
3 years ago
Read 2 more answers
Other questions:
  • 4. Inflection best relates to A. vocabulary. B. volume. C. tone. D. pace.
    12·1 answer
  • How many grams of nickel metal are plated out when a constant current of 15.0 Ais passed through aqueous NICl2 for 80.0 minutes?
    10·1 answer
  • Comic-strip hero superman meets an asteroid in outer space, and hurls it at 850 m/s, as fast as a bullet. the asteroid is three
    11·1 answer
  • Discuss how a battery works
    7·1 answer
  • You can increase the rate solute dissolves in solvent by______
    10·2 answers
  • How can light interact with wood
    11·1 answer
  • A proton with charge 1.602 x 10^-19 C moves at a speed of 300 m/s in a magnetic field at an angle of 65 degrees. If the strength
    9·1 answer
  • What provides all of the energy required to drive convection within the atmosphere and oceans?
    15·1 answer
  • Egocentrism, animism, and artificialism are characteristic of which of Jean Piaget's stages of cognitive development?
    12·1 answer
  • Two point charges attract each other with an electric force of magnitude F. If the charge on one of the particles is reduced to
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!