The great proof of Einstein's Theory of General Relativity was that light is bent by gravity (as it travels through a curved spacetime). Which of these statements is true?? O A light ray is bent the same amount, it doesn't matter how strong the gravity is. O A light ray is bent less by an intense gravitational field. O A light ray is bent more by an intense gravitational field. O Light rays aren't bent.
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- 1 2. Preparations are under way for a spacecraft visit to the Alpha Centauri star system, 4.30- lightyears away Provisions are placed on board to allow for a trip of 8 years. a. What minimum speed must the spacecraft travel relative to Earth if the provisions are to last?A cylindrical spaceship of length 35.0 m and diameter 8.35 m is traveling in the direction of its cylindrical axis (length). It passes by the Earth at a relative speed of 2.44××1088 m/s. a) What is the length of the ship, as measured by an Earth observer? b) What is the diameter of the ship, as measured by an Earth observer? c) How long does it take the spaceship to travel a distance of 10.0 km according to the ship's pilot? d) How long does it take the spaceship to travel a distance of 10.0 km according to an Earth-based observer?A beam of light is moving directly along the spaceship, but through an old-fashioned fiber optic cable. The speed of light in the cable is 0.6 times the speed of light in a vacuum. The spaceship is moving at 0.8 times the speed of light. What speed do you observe from the ground?
- O 5. Which of the following statements best describes the field of relativity? O The branch of physics dealing with electricity and magnetism. O The branch of physics dealing with nuclear energy and high speed particles O The branch of physics dealing with heat and temperature. O The branch of physics dealing with vibrations and sound. New version available! (3.0.245)Your 1000-m-long starship has warning lights at each end that, to you, flash simultaneously every minute. You are moving directly away from the planet Zerkon at 0.70c. To a Zerkonian, do the lights flash simultaneously? If not, which flashes first— the light at the front of your ship or the trailing one?Imagine yourself as an astronaut being paid according to the time you spend traveling in space. You take a long voyage traveling at a speed near that of light. Upon your return to Earth, you’re asked how you’d like to be paid: To maximize your paycheck, which clock should you choose? Group of answer choices Either of the clocks should indicate the same time It's hard to decide as the spaceship's speed is to be mentioned specifically in the problem. According to the time elapsed on the spaceship's clock According to the time elapsed on a clock on Earth
- (a) How long in seconds does it take a radio signal to travel 180 km from a transmitter to a receiving antenna? (b) We see a full Moon by reflected sunlight. How much earlier did the light that enters our eye leave the Sun? The Earth - Moon and Earth - Sun distances are 3.8x105 km and 1.5 x 108 km, respectively. (c) What is the round-trip travel time in seconds for light between Earth and a spaceship at a 9.0 x 106 km distance from Earth? (d) Suppose astronomers observe a supernova about 7600 light-years (ly) distant. How long ago in years did the explosion actually occur? (a) Number Units (b) Number Units (c) Number Units (d) Number UnitsIn 2030, the Australian Space Agency launches a spaceship to our nearest neighbour Alpha Centauri, approximately 4 lightyears away. According to a clock on Earth how long will the rocket take to get there if it travels at v=0.999c=299482km/s (where 'c' is the speed of light equal to 299782km/s)? About 2 years. O About 6 years. O About 4 years. Zero time.Chapter 37, Problem 015 The center of our Milky Way galaxy is about 24000 ly away. (a) To eight significant figures, at what constant speed parameter would you need to travel exactly 24000 ly (measured in the Galaxy frame) in exactly 27 y (measured in your frame)? (b) Measured in your frame and in lightyears, what length of the Galaxy would pass by you during the trip? (a) Number Units (b) Number Units
- A star is 12.2 ly (light-years) from Earth. HINT (a) At what constant speed (in m/s) must a spacecraft travel on its journey to the star so that the Earth–star distance measured by an astronaut onboard the spacecraft is 4.36 ly? m/s (b) What is the journey's travel time in years as measured by a person on Earth? NO SCIENTIFIC NOTATION ANSWERS THANK YOU→ According to the formula E=mc² O when two masses collide, we always get a lot of light O energy can travel much faster than light (in fact its speed can be the speed of light squared) a little bit of mass can be converted into a substantial amount of energy mass has to travel at the speed of light before it can produce any energy O Einstein was a male chauvinist twice over # 3 e d с $ 4 f % 5 t D.O Σ וום 6 E y & 7 h U 8