Suppose the speed of light were 1000 mi/h. You are traveling on a flight from Los Angeles to Boston, a distance of 3000 mi. The plane's speed is a constant 600 mi/h. You leave Los Angeles at 10:00 A.M., as indicated by your wristwatch and by a clock in the airport. According to your watch, what time is it when you land in Boston?
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- A UFO is observed directly above the earth moving at a constant velocity. An astronaut on the moon (3.8 x 108m from earth) observes the UFO passing overhead 5.8 s later. From the UFO's reference frame, how long did it take to travel from the earth to the moon?what is the connection between the speed of light and the SI (International System of Standards) definition of the meter?Suppose you are on Mars when it is 9.00 1010 m from earth. You call earth for the correct time and receive a recorded message indicating that the time at the tone is exactly 6:17 P.M. What time should you set on your watch?
- 1. A rocket flies toward the earth at c, and the captain shines a laser light beam in the forward direction. Which of the follow- ing statements about the speed of this light are correct? (There may be more than one correct answer.) A. The captain measures speed c for the light. B. An observer on earth measures speed e for the light. C. An observer on earth measures speed c for the light. D. The captain measures speed c for the light.The speed of light in space is 3.00 x 108 m/s. The time for light from the Sun to reach Earth is 8 minutes 20 seconds. Therefore, the distance from the Sun to Earth is 2.40 x 109 m. 8.64 x 1012 m. 1.50 x 1011 m. 2.25 x 109 m.Someone 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
- A spaceship moves by Earth at 2.8×108 m/s. A satellite moves by Earth in the opposite direction at 1.3×108 m/s. Use the Galilean transformation to calculate the speed vsatellite,x of the satellite relative to the spaceship. vsatellite,x = ? m/sA probe in outer space starts at rest. It accelerates at 23 m/s2 for 11 s, and then after that it coasts for the same amount of time. Calculate the total distance traveled by the probe, in m. (Please answer to the fourth decimal place - i.e 14.3225)A cosmic ray particle is released from an exploding star that is 2600 Light Years from Earth. If the particle traveled at 98% the speed of light, how far did it travel in its own frame of reference before hitting Earth?
- A clock is moving at v =(4/5)c. c is the speed of light. The clock passes our clock when both clocks read t = 0. When the moving clock reads t = 30 s, what will the clocks in our frame read?A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, 13 years have elapsed on earth, and 8.0 years have elapsed on board the ship. How far away (in meters) is the planet, according to observers on earth? Number i ap Earth time Ship time Spaceship departs earth Units Earth time -9 Ship time Spaceship arrives at distant planetYou are an astronomer on planet Tirth, which orbits a distant star. It has recently been accepted that Tirth is spherical in shape, though no one knows its size. One day, you learn that on the equinox your sun is directly overhead in the city of Tyene, located 450 kilometers due north of you. On the equinox, you go outside in Alectown and observe that the altitude of your sun is 85 ∘∘. What is the circumference of Tirth? Express your answer in kilometers to two significant figures.