PHYSICS HIGH SCHOOL

If someone is talking how do they get energy from the sun?

Answers

Answer 1
Answer:

Answer:

The sun generates energy from a process called nuclear fusion. During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons. Hydrogen nuclei fuse to form one helium atom.

Explanation:
Answer 2
Answer: i really dont know sorryyy

Related Questions

Which model of the atom has electrons traveling in specific paths around the nucleus? Bohr's model Rutherford's model Thomson's model Dalton's model
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.0677 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the outside to the inside?
If a car goes along a straight road heading west and speeds up from 25 ft/s to 60 ft/s in 5 s, calculate the acceleration.
Which of the following statements is an accurate description of vibrations? A. The frequency of infrasonic vibrations is much too high to be heard by humans. B. Neither ultrasonic nor infrasonic vibrations can be heard by humans. C. Infrasonic vibrations are used in sonar equipment as well as to detect flaws in steel castings. D. Ultrasonic vibrations have a frequency lower than the range for normal hearing.
What is the specific heat of an unknown substance if 2000 J of energy are required to raise the temperature of 4 grams of the substance 5 degrees Celsius?

Which of these statements best describes an effect of changes in Earth's magnetic field? A) Southern lights are seen at high altitude places like Alaska.
B) Northern lights are seen at low latitude places like Michigan.
C) The solar wind moves away from Earth towards other planets.
D) The magnetic north and south poles of Earth are interchanged.

Answers

The right answer for the question that is being asked and shown above is that: "D) The magnetic north and south poles of Earth are interchanged." The statement that best describes an effect of changes in Earth's magnetic field is that D) The magnetic north and south poles of Earth are interchanged.

Answer: D) The magnetic north and south poles of Earth are interchanged."

Explanation:

A hailstone traveling with a velocity of 43 meters/second comes to a virtual stop 0.28 seconds after hitting water. What is the magnitude of its acceleration in the water?A. 12 meters/second2
B. 1.5 × 102 meters/second2
C. 78.6 meters/second2
D. 6.5 × 10-3 meters/second2

Answers


Magnitude of acceleration = (change in speed) / (time for the change) .

Change in speed = (ending speed) - (starting speed)

                            =       zero            - (43 m/s)

                            =          -43 m/s .

Magnitude of acceleration = (-43 m/sec) / (0.28 sec)

                                          =  (-43 / 0.28)  (m/sec) / sec

                                          =        153.57...  m/s²

                                          =        1.5...  x 10²  m/s²  .

Answer:

1.5*10^2 meters/seconds^2

Explanation:

I got 100% on my test

In a motor dozens or hundreds of wire loops wrapped around a ferromagnetic core is called

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I believe the word you are looking for is called an armature. 

Using a good pair of binoculars, you observe a section of the sky where there are stars of many different apparent brightnesses. You find one star that appears especially dim. This star looks dim because it is:_______.

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Answer:

Using a good pair of binoculars, you observe a section of the sky where there are stars of many different apparent brightnesses. You find one star that appears especially dim. This star looks dim because it is farther away or it has a small radius.

Explanation:

Apparent magnitude in astronomy is the apparent brightness of a star that is seen from the Earth, that brightness can variate according to the distance at which the star is from the Earth or due to its radius.

That can be demonstrate with the next equation:

F = (L)/(4\pi r^2) (1)

Where F is the radiant flux received from the star, L its intrinsic luminosity and r is the distance.

For example, an observer sees two motorbikes approaching it with its lights on but one of the motorbikes is farther, so the light of this one appears dimmer, even when the two lights emit the same amount of energy per second.  

That is because the radiant flux decreases with the square distance, as can be seen in equation 1.

In the other hand, a bigger radius means that the gravity in the surface of the star will be lower, allowing that light can escape more easily:

g = (GM)/(R^2) (2)

Where g is the surface gravity in the star, G is the gravitational constant, M is the mass of the star and R is the radius of the star.

Which statements accurately describe matter

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I hope it is helpful for you ...

What is the approximate difference in elevation between Coolage Lake and the rectangular building in the top center portion of the map? A. 27 ft
B. 5 ft
C. 35 ft
D. 25 ft

Answers

The right answer for the question that is being asked and shown above is that:  "C. 35 ft." The approximate difference in elevation between Coolage Lake and the rectangular building in the top center portion of the map is that of C. 35 ft 
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