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
Ilya [14]
3 years ago
10

Neutron stars are extremely dense objects formed from the remnants of supernova explosions. Many rotate very rapidly. Suppose th

e mass of a certain spherical neutron star is twice the mass of the Sun and its radius is 13.0 km. Determine the greatest possible angular speed it can have so that the matter at the surface of the star on its equator is just held in orbit by the gravitational force.
Physics
1 answer:
mihalych1998 [28]3 years ago
8 0

Answer:

10989.55932 rad/s

Explanation:

m = Mass of object

M = Mass of neutron star = 2\times 1.989\times 10^{30}\ kg

R = Radius of neutron star = 13000 m

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

\omega = Angular speed

Here, the gravitational force will balance the centripetal force

\dfrac{GmM}{R^2}=mR\omega^2\\\Rightarrow \omega=\sqrt{\dfrac{GM}{R^3}}\\\Rightarrow \omega=\sqrt{\dfrac{6.67\times 10^{-11}\times 2\times 1.989\times 10^{30}}{13000^3}}\\\Rightarrow \omega=10989.55932\ rad/s

The greatest possible angular speed an object can have is 10989.55932 rad/s

You might be interested in
What is a normal force?
Flauer [41]
Is the component perpendicular to the surface on contact  of the  contact force  <span />
3 0
3 years ago
What is the momentum of a car with a mass of 1,300 kg traveling at a speed of 28 m/s?
Vlad1618 [11]

Answer:

<h3>The answer is 36,400 kgm/s</h3>

Explanation:

The momentum of an object can be found by using the formula

<h3>momentum = mass × velocity</h3>

From the question

mass = 1,300 kg

speed / velocity = 28 m/s

We have

momentum = 1,300 × 28

We have the final answer as

<h3>36,400 kgm/s</h3>

Hope this helps you

7 0
3 years ago
What is an ionic bond?
Airida [17]

A.) a bond that forms when electrons are transferred from one atom to another

4 0
1 year ago
Read 2 more answers
Match the facts to the examples. The force of gravity increases with an increase in the mass of objects. Acceleration due to gra
sergeinik [125]

The force of gravity increases with an increase in the mass of objects. . . . A large, massive dog weighs more than a small dog.

Acceleration due to gravity is independent of the mass of objects. . . . Two falling inflated balls of different masses land at the same time.

Air resistance increases with an increase in the surface area of objects. . . . A crumpled ball of paper falls faster than a sheet of paper of the same mass.

arrowRight . . . . a button on a computer keyboard that causes the cursor to move to the right on the screen when pushed

arrowRight . . . . a button on a computer keyboard that causes the cursor to move to the right on the screen when pushed  

arrowRight . . . . a button on a computer keyboard that causes the cursor to move to the right on the screen when pushed

8 0
3 years ago
Read 2 more answers
A ball is thrown horizontally from the top of
stiks02 [169]

I dotn know sorryyyyyyyyyyy

8 0
3 years ago
Other questions:
  • A 20 kg object is dropped from a very tall building. What is the weight of this objects? After 5 seconds, how has the object fal
    10·1 answer
  • When something could pose a danger, this could be a...
    13·2 answers
  • What is the equivalent resistance for a parallel circuit that has two resistors: 18.0 ohms and 23.5 ohms?
    12·2 answers
  • Yosef applies an input force of 50 N to a crowbar. The crowbar applies a force of 750 N to the lid of a crate. What is the mecha
    12·2 answers
  • Water is boiling in a12-cm-deep pan with an outer diameter of 25 cm that is placed on top of a stove. The ambient air and the su
    8·2 answers
  • A space station shaped like a giant wheel has a radius of a radius of 153 m and a moment of inertia of 4.16 × 10⁸ kg·m² (when it
    15·1 answer
  • Statement that can be proven by observation or measurement is known as a(n):
    7·1 answer
  • 6. Directions: Drag each item to the correct location on the diagram. Many of the astronomical events that can be witnessed from
    13·2 answers
  • Two round concentric metal wires lie on a tabletop, one inside the other. The inner wire has a diameter of 19.0 cmcm and carries
    7·1 answer
  • Marine science- question- what is climate change?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!