I need help with this !!

Special Relativity gives a new and special meaning to "mass". In classical physics, mass is a constant property of an object or a fundamental particle. It determines how an object responds to a force, that is, its inertia. A moving object gains a kinetic energy12212mv2 as a consequence of its motion. In Special Relativity, an object has an energy 2mc2 whether moving or at rest. However, the mass now depends on the velocity as seen by an observer. While the mass seen at rest is 0m0, the mass observed is

=0/12/2m=m0/1v2/c2

1. If you have a mass of 65 kg, what is your energy when observed at rest? Compare classical and relativistic concepts.

2. Now seen by a physicist sitting at rest in an inertial reference frame, watching you moving past at a top jogging speed, say 8 km /hr, what is the classical kinetic energy that the physicist would assign to you. Find an answer in joules.

3. Under the same circumstances, what is your relativistic mass (a) as you would see it, and (b) as that resting physicist would see? By how much would your mass have appeared to increase as a consequence of the speedy jogging pace?

4. By how much has your relativistic energy increased in going from rest to 8 km/hr, as seen by our park bench viewer? If, instead, you were accelerated from rest to 99.9% of the speed of light, how much energy would that take? The annual energy consumption in the United States was 3.9310123.931012 kWh in 2014. That's 1.4110191.411019 J per year. What does that tell you about the possibility of taking a trip to a distant star in what seems to you to be a very short time?

5. Accounting for the energy it emits into all directions, the Sun radiates3.846 10²⁶ watts. We know from relativistic physics and the physics of the nuclei of ordinary matter that this energy is from the change of H into He with a loss of mass deep inside the Sun. How much mass in kilograms must disappear from our star for it to emit energy with this enormous luminosity? Compare that mass to Earth's mass and the Sun's mass, and explain what the consequences of this loss must mean for how the Sun evolves.