Why is it impossible for any object with mass to move as fast as the speed of light?

A particle initially has a speed of 0.37c. (Enter your answers in terms of c. Round your answers to at least three decimal places.) (a) At what speed does its momentum increase by 1%? 0.41 X с (b) At what speed does its momentum increase by 10%? (c) At what speed does its momentum increase by 100%?

A rocket is traveling at 0.3 times the speed of light. If it's speed is doubled, by what factor does its energy increase?

In a certain particle accelerator, a proton has a kinetic energy that is equal to its rest energy. What is the speed of the proton relative to the accelerator? 0.87 c 0.25 c 0.75 c 0.71 c 0.50 c

A spaceship has a length of 20 meters at rest and accelerates to high speed. A person at rest on the ground observes that the spaceship has 12 meters. How fast (in x 108m/s) is the spaceship?

The spaceship Lilac, based on the Purple Planet, is779 m long when measured at rest. When the Lilac passes Earth, observers there measure its length to be 724 m. At what speed v is the Lilac moving with respect to Earth? Express your answer as a multiple of the speed of light ?.

The Sun produces energy at a rate of 4.00 x 1026 W by the fusion of hydrogen. How many kilograms of mass is the Sun losing per second?

In a nuclear reactor, mass is converted to energy via nuclear fission reactions. The conversion of mass to energy is calculated from Einstein's famous equation. (The speed of light is c = 3.0 ×ばつ 108 m/s.) Consider a reactor generating 890 megawatts of power. Calculate the decrease of mass in one year of running.

A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, 11 years have elapsed on earth, and 7.0 years have elapsed on board the ship. How far away (in meters) is the planet, according to observers on earth? Earth time Spaceship departs earth Number Ship time Units Earth time Ship time Spaceship arrives at distant planet