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
lozanna [386]
3 years ago
8

In stars mor massive than the sun, fusion continues until the core is almost all....

Physics
1 answer:
serious [3.7K]3 years ago
3 0
In stars more massive than the sun, the core temperature is hotter, which allows for fusion of more complex elements.

Most of the fusion occurs in the core.

In stars more massive than the sun, fusion continues through Deuterium, Carbon, and finally reaching iron/nickel.

Up to this point, the fusion reaction was endothermic, which means that the energy expended to produce the fusion reaction was exceeded by the energy produced in the reaction.

Fusion past iron is exothermic, and therefore the star will be able to survive by fusing elements heavier than iron.

After the core is almost entirely iron, the star is no longer in the Main Sequence.

So, fusion in stars more massive than the sun continue fusing until the core is almost entirely <em>iron</em>.
You might be interested in
A large bottle contains a number of medicinal tablets is 0.5kg. Calculate the number of tablets in the bottle?
Alexeev081 [22]

Answer:

the answer is 5k in the bottle have

8 0
3 years ago
is using electrolysis to separate water molecules in hydrogen and oxygen atoms , a physical or chemical change?
DedPeter [7]
Technically it's a chemical change even though the process is reversible.
8 0
3 years ago
Sort these statements about machines based on whether they are correct or incorrect.
insens350 [35]

as well.

1. Correct

Explanation

An inclined plane is a flat  surface which lie at an angle, Its one end is higher than the other this inclined plane is used as an aid for raising or lowering a load. Staircase also work in similar manner

2. Correct

Explanation

yes all simple machine have a fulcrum

3. Incorrect

Explanation

when we swim that time our arms and legs 'push' the water due to which water displaced in backward direction so her we applied a positive work on the water. According to Newton's Third Law,same magnitude of work is done by water in opposite direction to push us back on our arms and legs. therefore water also does positive work on us.

4. incorrect

Explanation

The force exerted by a machine on an object is input force

5.  Incorrect

Explanation

when the input force is greater than the output force that time machine have mechanical advantage of less than 1.


8 0
2 years ago
Read 2 more answers
At what distance from Earth does the force of gravity exerted by Earth on the coasting spacecraft cancel the force of gravity ex
telo118 [61]

Answer:

346 * 10⁶ m

Explanation:

The force of gravity of the earth that will cancel the the force of gravity exerted by the moon will be equal to each other

Let F_{e} be the force of gravity exerted by the earth

and let F_{m} be the force of gravity exerted by the moon

According to Newton's law of universal gravitation, the force of attraction between two different masses, m₁ and m₂ separated by a distance, d,  is given by:

F = \frac{Gm_{1} m_{2} }{d^{2} }

Mass of the earth, m_{e} = 5.97 * 10^{24} kg

Mass of the moon, m_{m} = 7.348 * 10^{22} kg

Mass of the satellite, m_{s} = ?

F_{e}  = \frac{G*5.97 * 10^{24} M }{d^{2} }...............................(1)

The earth and the moon are separated by a distance, 3.844 * 10⁸ m

F_{m}  = \frac{G*7.348 * 10^{22} M }{(3.844 * 10^{8} - d) ^{2} }............................(2)

Equating equations (1) and (2)

\frac{5.97 * 10^{24} }{d^{2} } = \frac{7.348 * 10^{24} }{(3.844* 10^{8} -d)^{2} }

(5.97 * 10^{24})(14.78 * 10^{16}  -7.688*10^{8}d + d^{2}) = 7.348 * 10^{24} d^{2} \\88.24*10^{40} - 45.9 * 10^{32}d +  5.97 * 10^{24}d^{2} =  7.348 * 10^{24} d^{2}\\ 1.378 * 10^{24}d^{2} + 45.9 * 10^{32}d + 88.24*10^{40} = 0\\

Factorising out 10^{24}

1.378d^{2} + 45.9 * 10^{8}d + 88.24*10^{16} = 0

Solving for d in the quadratic equation  above:

d = 346 * 10⁶ m

4 0
3 years ago
Explain Newton's first law of motion for an object in<br> motion.
Anit [1.1K]

Answer:

bshghhxhgdyxhsygfhtgedhrugrugdjifgu

rolling of a ball uses motion his bushy we I his own shaken his known fish of his jus on

6 0
2 years ago
Other questions:
  • Which statement is true about the element shown here? A) This element tends to gain electrons to become stable. B) This element
    14·2 answers
  • When an atom is involved in a nuclear reaction:
    5·1 answer
  • How are scientists able to measure the age of earth?
    9·1 answer
  • I really need help please just answer at least one
    13·1 answer
  • Arteriosclerotic plaques forming on the inner walls of arteries can decrease the effective cross-sectional area of an artery. Ev
    5·2 answers
  • 1) A rock thrown horizontally from the top of a
    5·1 answer
  • Using water displacement to find volume of an irregular object: A submerged object will displace a volume of water that is equal
    6·1 answer
  • When a resistor with resistance R is connected to a 1.50-V flashlight battery, the resistor consumes 0.0625 W of electrical powe
    9·1 answer
  • How do longshore currents shape the land?
    8·2 answers
  • What is deviation of light by prism​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!