Answer Posted / marco zannotti

According to the Einstein's Theory of Relativity, the mass
of a body (say a particle) depends on the energy and on the
momentum (say the velocity) with which the particle moves.
So, we have a problem: is there a mass value that every
observers can relate to? Yes: is the rest mass, that is the
mass you could measure in a frame of reference co-moving
with the particle (in which the particle is still), that is
the center-of-mass frame and that coincide with the minimum
value measurable for every observers.

in the caase of transmission of data of OFC, the data will be carried by light energy, how the light energy is created? whether it s created by broad band connector or subscriber itself?

1918

---

Tell me why is heavy water used as a moderator?

838

---

CAN WE HAVE THE ARRANGEMENT OF QUARKS OF PROTON 'UP,DOWN,UP' INSTEAD OF 'UP,UP,DOWN'?

1933

---

Explain what is nucleus?

775

---

What is the rest mass energy of an electron?

879

---

Explain the essential difference between an electron and a beta ray?

888

---

What happens if flattening filter comes in bettwwen treatment of 9 Mev electron beam theraphy.

2250

---

why did you choose analytical chemistry?

2923

---

How many types of faults occur in power system?Write all types?

2180

---

what is the significance of the hrmite and polynomial polynomials in quantum phyics.

2190

---

i want give drug inspector exam ,, how i appear in this & now i am going to complete b.pharma.. also send me some coaching sites....& full syllabus information for drug inspector also any experience required for it& how much it ... which exams prefer upsc or states public service comission exam

2035

---

Tell me is it possible that a nucleus has negative mass defect?

813

---

The velocity of a body was noted to be constant during five minutes of its motion. What was acceleration during this interval its?

833

---

What is fusion?

880

---

What is the history of nuclear reaction?

792

---