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
marin [14]
2 years ago
13

Describe how elements are formed in stars.

Physics
1 answer:
elena-14-01-66 [18.8K]2 years ago
6 0

Answer:

Stars create new elements in their cores by squeezing elements together in a process called nuclear fusion.

Explanation:

You might be interested in
The particles ejected from the sun during a coronal mass ejection is called
ipn [44]

Answer:

Plasma

Explanation:

A Coronal Mass Ejection (CME) is an outburst of energy that occurs near the outer part of the sun's atmosphere which causes a production of plasma along with a magnetic field.

The outermost part of the sun's atmosphere is called the Solar Corona Although difficult to see, the corona can be seen during a total solar eclipse.

Plasma from CME are clouds of magnetized electrically charged particles which the solar wind causes to travel at a speed of 1.6 million km/hr.

7 0
3 years ago
A cannonball with a mass of 1.0 kilogram is fired horizontally from a 500.-kilogram cannon, initially at rest, on a horizontal,
vfiekz [6]
The impulse J is equal to the magnitude of the force applied to the cannonball times the time it is applied:
J=F \Delta t
But the impulse is also equal to the change in momentum of the cannonball:
J=\Delta p
If we put the two equations together, we find
F \Delta t= \Delta p
And since we know the magnitude of the average force and the time, we can calculate the change in momentum:
\Delta p= F \Delta t=(8.0 \cdot 10^3 N)(1.0 \cdot 10^{-1} s)=800 kg m/s
7 0
3 years ago
What is difference between non uniform and uniform circular motion?
statuscvo [17]

Answer:

The object in a uniform motion covers same distances in an equal time period. Objects in a non-uniform motion cover dissimilar distances in an equal time period.

Explanation:

The speed of the object traveling in uniform motion is constant, the actual speed and the average speed of the moving body is same.

6 0
3 years ago
A moving small car has a head-on collision with a large stationary truck 7.3 times the mass of the car. Which statement is true
ad-work [718]
The car bounces off and moves in the opposite direction
8 0
2 years ago
Read 2 more answers
A 21 N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block ar
Georgia [21]

Answer:

a)15 N

b)12.6 N

Explanation:

Given that

Weight of block (wt)= 21 N

μs = 0.80 and μk = 0.60

We know that

Maximum value of static friction given as

Frs = μs m g = μs .wt

by putting the values

Frs= 0.8 x 21 = 16.8 N

Value of kinetic friction

Frk= μk m g = μk .wt

By putting the values

Frk= 0.6 x 21 = 12.6 N

a)

When T = 15 N

Static friction Frs= 16.8 N

Here the value of static friction is more than tension T .It means that block will not move and the value of friction force will be equal to the tension force.

Friction force = 15 N

b)

When T= 35 N

Here value of tension force is more than maximum value of static friction that is why block will move .We know that when body is in motion then kinetic friction will act on the body.so the value of friction force in this case will be 12.6 N

Friction force = 12.6 N

8 0
3 years ago
Other questions:
  • Why is rolling a ball down a hill considered an unbalanced force?
    8·2 answers
  • A 7.00 kg mass is being pulled by a 53.8 n force what is the acceleration
    6·1 answer
  • If different groups of scientist have access to the same data, how can they draw different conclusions?
    5·1 answer
  • Which statement is equivalent to newtons first law
    9·2 answers
  • SY19-
    8·1 answer
  • Two platoons line up for a tug of war. If both platoons have the same number of participants on a team, what other factor is cri
    12·2 answers
  • Jack is falling down the hill at a speed of 12 m/s. If Jack has a mass of 45 kg, what is his kinetic energy?
    15·1 answer
  • Which of the following is not a function of PACs?
    8·2 answers
  • Help me please,
    13·1 answer
  • A particle A of mass 2kg originally moving with a velocity of 3ms collides directly with another particles B of mass 2kg moving
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!