An astronaut at rest on Earth has a heartbeat rate of 61 beats/min.
An astronaut at rest on Earth has a heartbeat rate of 61 beats/min. When the astronaut is traveling in a spaceship at 0.81c, what will this rate be as S measured by an observer also in the ship and an observer at rest on Earth?
(a) an observer also in the ship
(b) an observer at rest on Earth
Homework Answers
24. An astronaut at rest has a heart rate of 65 beats/min. What will her heart...
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(a) A person's "resting" heart rate is his or her normal heart rate measured while sitting still (and long after doing anything physically exerting). A nurse on Earth measures the resting heart rate of a patient as 66.0 beats/min. Imagine the patient travels aboard a spaceship moving with a constant speed of 0.89c with respect to the Earth. What would be the patient's resting heart rate (in beats/min) as measured by someone else aboard the ship? beats/min (b) Imagine an...
An astronaut whose pulse frequency remains constant at 72 beats/min is sent on a voyage. What...
An astronaut whose pulse frequency remains constant at 72 beats/min is sent on a voyage. What would her pulse beat be, relative to Earth, when the ship is moving relative to Earth at (a) 0.10c and (b) 0.90c? (a) 31 beats/min (b) 31 beats/min (a) 72 beats/min (b) 72 beats/min (a) 72 beats/min (b) 31 beats/min (a) 31 beats/min (b) 72 beats/min
A spacecraft is traveling at 0.900c relative to earth. An astronaut’s heart rate is measured on...
A spacecraft is traveling at 0.900c relative to earth. An astronaut’s heart rate is measured on the spacecraft at 60 beats/min. (a) What is the heart rate measured by an observer in the moving reference frame? (b) What is the heart rate measured by an observer able to view this time interval from Earth?
. A spacecraft is traveling at 0.900c relative to earth. An astronaut’s heart rate is measured...
. A spacecraft is traveling at 0.900c relative to earth. An astronaut’s heart rate is measured on the spacecraft at 60 beats/min. (a) What is the heart rate measured by an observer in the moving reference frame (b) What is the heart rate measured by an observer able to view this time interval from Earth?
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An apartment complex is 100 yards long as measured on earth. What length will an astronaut measures if his spaceship is traveling at a speed of 0.50 C relative to earth?
Twin astronauts, Harry and Larry, have identical pulse rates of 76 beats/min on Earth. Harry remains...
Twin astronauts, Harry and Larry, have identical pulse rates of 76 beats/min on Earth. Harry remains on Earth, but Larry is assigned to a space voyage during which he travels at 0.84c relative to Earth. What will be Larry's pulse rate as measured by Harry on Earth? pulse rate measured by Harry: beats/min What will be Larry's pulse rate as measured by the physician in Larry's spacecraft? pulse rate measured by the physician: beats/min
3. a) As shown in Figure 3a, a hibernating astronaut in a ship at rest lies...
3. a) As shown in Figure 3a, a hibernating astronaut in a ship at rest lies on a recliner making an angle = 35° with the horizontal. The height of the recliner is y = 1.15 meters. In Figure 3b, the ship is moving at velocity v = 0.75c with respect to a stationary observer. Calculate the value of the Lorentz factor y. What is the observed angle e' of the length-contracted recliner? Figure 3b. Relativity: 1 - 22 ť=yto...
A spaceship at rest on the earth has a length of 120m and a mass of...
A spaceship at rest on the earth has a length of 120m and a mass of 16,000kg. Then the spaceship begins to move away from the earth at 3/4 speed of light. If the spaceship sends out a second ship away from the earth on what observers on the spaceship think is 1/2 speed of light, how fast do the observers on earth think the second ship is moving? If the spaceship sends out a second ship toward the earth...
Observer A on Earth sees spaceship B moving at speed v = 0.600c0 away from Earth...
Observer A on Earth sees spaceship B moving at speed v = 0.600c0 away from Earth and spaceship C moving at the same speed in the opposite direction. Observer A determines that both ships simultaneously sent out a radio signal at 12:00:00 noon and another signal at 12:05:00 p.m., making the time interval A measures between the emission of the signals from each ship ?tA = 5.00 min . Let ?tBB denote the time interval measured on ship B between...
24. An astronaut at rest has a heart rate of 65 beats/min. What will her heart rate be as measured by an earth observer when the astronaut's spaceship goes by the earth at a speed of 0.60 c? A. 39 beats/min B. 52 beats/min C. 108 beats/min D. 81 beats/min
An astronaut whose pulse frequency remains constant at 72 beats/min is sent on a voyage. What would her pulse beat be, relative to Earth, when the ship is moving relative to Earth at (a) 0.10c and (b) 0.90c? (a) 31 beats/min (b) 31 beats/min (a) 72 beats/min (b) 72 beats/min (a) 72 beats/min (b) 31 beats/min (a) 31 beats/min (b) 72 beats/min
Twin astronauts, Harry and Larry, have identical pulse rates of 76 beats/min on Earth. Harry remains on Earth, but Larry is assigned to a space voyage during which he travels at 0.84c relative to Earth. What will be Larry's pulse rate as measured by Harry on Earth? pulse rate measured by Harry: beats/min What will be Larry's pulse rate as measured by the physician in Larry's spacecraft? pulse rate measured by the physician: beats/min
3. a) As shown in Figure 3a, a hibernating astronaut in a ship at rest lies on a recliner making an angle = 35° with the horizontal. The height of the recliner is y = 1.15 meters. In Figure 3b, the ship is moving at velocity v = 0.75c with respect to a stationary observer. Calculate the value of the Lorentz factor y. What is the observed angle e' of the length-contracted recliner? Figure 3b. Relativity: 1 - 22 ť=yto...
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