Particles of light have no mass. Does the Sun’s mass change as a result of all the light it emits? Explain.
Yes, the Sun’s mass change as a result of all the light it emits.
The process of forming a single nucleus by merging the two light nuclei is known as the fusion process. The fusion process releases some energy because the total mass of the single nucleus is less than the mass of the two light nuclei. The difference between the mass of the two nuclei and a single nucleus is converted into energy.
The suns emit light due to the fusion process that happens inside the sun. The light contains the photons particles, and the photon's particle has zero mass, but when they emit in the form of the light, they take some energy with them and emit from the sun. The Einstein mass-energy relation gives the loss of the sun's mass in the fusion process.
The expression for the Einstein mass-energy equation is given by,
Here, m is the equivalent losing mass, E is the sun losses energy and c is the speed of the light.
Hence the Sun’s mass change as a result of all the light it emits.
A object moving to the right through a laboratory at collides with a object moving to the left through the laboratory at . Afterward, there are two objects, one of which is a mass at rest.
(a) What are the mass and speed of the other object?
(b) Determine the change in kinetic energy in this collision.
Refer to Figure 2.18. (a) How long is a spaceship? (b) At what speed do the ships move relative to one another? (c) Show that Anna’s times are in accord with the Lorentz transformation equations. (d) Sketch a set of diagrams showing Anna’s complementary view of the passing of the ships. Include times in both frames.
Question: A friend says, "It makes no sense that Anna could turn on lights in her hands simultaneously in her frame but that they don't turn on simultaneously in another-she decides to do it, and its done." By considering the tractable, if somewhat unrealistic, situation of Anna's thought being communicated to her hands by light signals, answer this objection.
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