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
irina1246 [14]
3 years ago
14

What is the proton-proton chain reaction? Describe this process

Physics
1 answer:
user100 [1]3 years ago
7 0

Answer:

Proton proton chain reaction involves the fusion of two hydrogen atoms.

Explanation:

Two protons combine together to form a deuterium nucleus, a neutrino and a positron.

This deuterium will then combine with another hydrogen to form a helium isotope with mass number three and gamma rays.

Now two helium isotopes combine to form a helium 4 nucleus and two protons.

These two protons will once again initiate another proton proton cycle.

These are called thermonuclear fusion reactions. They are responsible for the heat and light that are received from sun .

Proton proton cycle happens in all stars primarily.  

You might be interested in
The amount of light lost within a fiber-optic system is known as
densk [106]
Attenuation is the correct answer. 
6 0
3 years ago
If the height of the ramp is increased then the marble's speed will be greater because gravity will have less resistance when pu
11Alexandr11 [23.1K]
The dependent variable is height of ramp.
7 0
3 years ago
The potential energy between two atoms in a particular molecule has the form U(x) = 2.1 x 8 − 5.2 x4 where the units of x are le
a_sh-v [17]

Answer:

x\approx 0.948

Explanation:

The correct formula for the potential energy between two atoms in a particular molecule is:

U(x) = \frac{2.1}{x^{8}}-\frac{5.2}{x^{4}}

Where x is the distance.

According to the definitions of potential energy and work, as well as the Work-Energy Theorem and the Principle of Energy Conservation. The relation between that and related force is:

F = -\frac{dU}{dx}

The function is derived in terms of distance:

F (x) = \frac{84}{5\cdot x^{9}} -\frac{104}{5\cdot x^{5}}

Then, it is needed to find at least of x so that F(x) equals to 0.

\frac{84}{5\cdot x^{9}}-\frac{104}{5\cdot x^{5}}=0

\frac{84}{x^{4}}-104 = 0

84-104\cdot x^{4} = 0

x=\sqrt[4]{\frac{84}{104} }

x\approx 0.948

7 0
3 years ago
A scientific theory is_____.
natta225 [31]

Answer:

B. A well-tested explanation for a widely accepted hypothesis

Explanation:

This is true about a scientific theory going by the fact of it being a well tested explanation. For example, in one of the Newtons law of motion which he stated to be<em> "To every action, there is equal and opposite reaction", </em><em>the hypothesis has been known till he was able to offer a well tested explanations with calculations showing that, it was actually true.</em>

6 0
3 years ago
Calculate the kinetic energy of a 2kg ball moving at 5m/s
shepuryov [24]

Answer:

25

Explanation:

The kinetic energy is 25

8 0
3 years ago
Other questions:
  • When you snap your wrist open, the frisbee ____
    13·1 answer
  • An Isentropic process is an idealised process which is adiabatic and reversible (in thermodynamics). There is no transfer of hea
    7·1 answer
  • Which sentence states Newton’s third law?
    9·2 answers
  • According to newton’s first law, when the net force acting on an object is zero, the object must _____.
    6·1 answer
  • From the frame of reference of car 1, what is the velocity of car 2?​
    5·1 answer
  • A small car and an SUV are at a stoplight. The car has a mass equal to half that of the SUV, and the SUV's engine can produce a
    14·1 answer
  • Which best describes a tsunami?
    8·2 answers
  • The gravitational force between two objects is 2700 N. What will be the gravitational force between the objects if the distance
    11·2 answers
  • I need this to be correct and explane why its that answer.
    12·1 answer
  • a heavy block is suspended from a vertical spring. the elestic potential energy is stored in the spring is 2 j. what is the spri
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!