Light travels through water at a speed of about 2.25 × 108 m/s. Is it possible for a particle to travel through water at a speed v greater than 2.25 × 108 m/s?
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- An electron has total energy 2.50 MeV. Find (a) its kinetic energy and (b) its speed.You are driving down a two-lane country road, and a truck in the opposite lane is traveling toward you. Suppose that the speed of light in a vacuum is c = 69 m/s. Determine the speed of the truck relative to you when (a) your speed is 25 m/s and the truck’s speed is 35 m/s and (b) your speed is 5.0 m/s and the truck’s speed is 55 m/s. The speeds given in parts (a) and (b) are relative to the ground.Electromagnetic radiation from a star is observed with an earth-based telescope. The star is moving away from the earth with a speed of 0.580c. If the radiation has a frequency of 8.64 x 1014 Hz in the rest frame of the star, what is the frequency measured by an observer on earth?
- A particle detector can be used to measure the speed of an unstable particle if the lifetime is known. Particle 'X' has mean lifetime 7 in its rest frame. Suppose 'X' particles are created in an experiment inside the detector by a nuclear reaction. If the 'X' particles leave tracks with mean length L before they decay into other particles, what is the mean speed of the 'X' particles? Express the answer in terms of the speed of light. T = 282.0 ps; L= 10.5 cm;A spacecraft is traveling at ~v = 38.4km s (yes, that is a reasonable speed for a rocket). How long will it take to travel from the earth to the moon, a distance of 384 Mm from Earth?Two spaceships, A and B, fly by a space station. An observer on the space station uses a telescope to measure the length of a meterstick in ship A and finds that it is 0.90 m . He does the same for ship B and finds that it is 0.60 m . What is the ratio of the speeds of the two ships relative to the space station, uBuA ?
- Electromagnetic radiation from a star is observed with an earth-based telescope. The star is moving away from the earth with a speed of 0.590c. If the radiation has a frequency of 8.64 x 10 Hz in the rest frame of the star, what is the frequency measured by an observer on earth? a) Of = 4.39 x 1014 Hz b) Of = 4.93 x 1014HZ c)Of = 4.45 x 1014 Hz d) Of = 4.39 x 1015 Hz e) Of = 4.69 x 1014 HzA spaceship travels at a speed of 2.4 x 108 m/s. A clock in the spaceship passes 60 seconds. How much time (in second) passes on the clock at rest on the ground?A proton in the large hadron collider (LHC) travels at a relativistic velocity of 0.99c. mp = 1.67 x 10-27 kg. (a) What is the total energy in J, and eV (1.60 x 10-19 J/eV)? (b) What is the momentum? (c) What is the kinetic energy
- Needs Complete typed solution with 100 % accuracy.a. What is vav,x for the interval from t = 0 to t = 3.60 s? answer in m/s b. What is vav,x for the interval from t = 0 to t = 3.50 s? anser in m/sSomeone in Earth's rest frame says that a spaceship's trip between two planets took 10.0 years, while an astronaut on the space ship says that the trip took 6.27 years. Find the speed of the spaceship (as measured by someone in Earth's rest frame) in terms of the speed of light. 0.959c 0.687c 0.489c 0.684c 0.779c