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
12345 [234]
3 years ago
7

What is hydrostatic equilibrium in a star? a) The balance between radiation from the surface and the rotation rate b) The expans

ion of the core when it is heated c) The increase in the rate of fusion when the star runs out of hydrogen d) The balance between the force of gravity directed in and thermal pressure directed.
Physics
1 answer:
Dahasolnce [82]3 years ago
6 0

Answer: d) The balance between the force of gravity directed in and thermal pressure directed

Explanation:

Hydrostatic Equilibrium helps to put in perspective star as self- regulating systems . It makes it plain that the energy generated in the star's hot core, is carried outward towards the cooler surface.

You might be interested in
A car traveling at 28 m/s starts to decelerate steadily. It comes to a complete stop in 13 seconds. What is its acceleration?
Maru [420]

Acceleration = (change in speed) / (time for the change)

change in speed = (speed at the end) minus (speed at the beginning)

change in speed = (zero) minus (28 m/s) = -28 m/s

Acceleration = (-28 m/s) / (13 sec)

Acceleration = -2.15 m/s²

5 0
3 years ago
A certain white dwarf star was once an average star like our Sun. But now it is in the last stage of its evolution and is the si
solmaris [256]

Answer:

4.384 * 10^13

Explanation:

Given the expression :

[(6.67 * 10^-11) * (1.99 * 10^30)] ÷ [(1.74*10^3)*(1.74*10^3)]

Applying the laws of indices

[(6.67 * 1.99) *10^(-11 + 30)] ÷ [(1.74 * 1.74) * 10^3+3]

13.2733 * 10^19 ÷ 3.0276 * 10^6

(13.2733 / 3.0276) * 10^(19 - 6)

4.3840996 * 10^13

= 4.384 * 10^13

6 0
2 years ago
Which of the following best describes a galaxy?
valentinak56 [21]

Answer:

B-Large groups of stars held together by gravity

Explanation:

4 0
3 years ago
An object has a 600 N force pushing it to the right, while a 700 N force pushes in the opposite direction. Gravity also acts on
nordsb [41]
Left is the answer 3
6 0
3 years ago
Read 2 more answers
PLEASE HELP ME.....WILL MARK BRAINLIEST ANSWER
schepotkina [342]
A) gases particles are far apart
8 0
3 years ago
Read 2 more answers
Other questions:
  • The value of a scientific variable _____.
    15·2 answers
  • (PLS HELP 20 POINTS, IM TOO DUMB FOR THIS) What is the total momentum of the system after the collision?​
    13·1 answer
  • the figure below represents a wooden block whose dimensions are 2m by 0.2m by 0.2m.calculate the volume of the block and the mas
    5·1 answer
  • A 450-kg sports car accelerates from rest to 100 km/h in 4.80 s. what magnitude force does a 68.0 kg passenger experience during
    10·1 answer
  • Venus has a radius of 6.05 x 106 m,
    5·1 answer
  • What is the work done by a car's braking system when it slows the 1500-kg car from an initial speed of 96 km/h down to 56 km/h i
    14·2 answers
  • Jon recently drove to visit his parents who live 648 miles away. On his way there his average speed was 14 miles per hour faster
    10·2 answers
  • A 10-μF capacitor in an LC circuit made entirely of superconducting materials ( R = 0 Ω ) is charged to 100 μC. Then a supercond
    6·1 answer
  • Calculate the force applied (in newtons) if a pressure of 2000Pa is acting on an area of 3m2.
    10·1 answer
  • Find the area of the part of the plane 5x 3y z = 15 that lies in the first octant.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!