Our galaxy's diameter is about 105 lights years away. How much time does it take an...
Our galaxy's diameter is about 105 lights years away. How much time does it take an electron moving at 0.9999c to cross the galaxy, measured in the reference frame of (a) the galaxy and (b) the electron?
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Our galaxy's diameter is about 105 lights years away.
How much time does it take an...
Our galaxy, the Milky Way, has a diameter of about 100,000 light years. How many years...
Our galaxy, the Milky Way, has a diameter of about 100,000 light years. How many years would it take a spacecraft to cross the galaxy if it could travel at 99% the speed of light? A. 1.8 × 103 yrs B. 1.4 × 104 yrs C. 7.2 × 103 yrs D. 1.0 × 105 yrs
piloting a state-of-the-art spaceship to α Centauri, which is a star about 4 lightyears away as measured from Earth. Your ship cruises at a speed of 0.6c. For this problem, you can assume that Ea...
piloting a state-of-the-art spaceship to α Centauri, which is a star about 4 lightyears away as measured from Earth. Your ship cruises at a speed of 0.6c. For this problem, you can assume that Earth and a Centauri are at rest with respect to each other. At your journey's midpoint, you decide to send a souvenir package to your folks back home. You launcha probe back to Earth at a speed of v 0.8c from your perspective. a. How long...
On average over time, about 4 new stars form every year in our Galaxy. That is, about 4 protostar...
On average over time, about 4 new stars form every year in our Galaxy. That is, about 4 protostars reach the zero-age main sequence and start burning hydrogen. Assuming that it takes 1.5 million years for a recognizable protostar to reach the ZAMS, once it is formed, how many protostars are there at any one time in our Galaxy?
please help 2. Now we are going to look at problem 1 again, but this time...
please help
2. Now we are going to look at problem 1 again, but this time we are going to set the spaceship as the inertial stationary frame, meaning that the Earth is defined as the moving frame and traveling away from you. 1B:.8740 ; P = 2.058yr a. Using your answer from Ib as the speed of the moving frame, V, what is the speed of the Earth with respect to your spaceship? Using a Galilean Transformation equation for...
Alpha Centauri, the binary star closest to our solar system, is about 4.0 ly away. If...
Alpha Centauri, the binary star closest to our solar system, is about 4.0 ly away. If a spaceship traveled this distance with a constant speed of 0.85c relative to Earth, how much time would elapse (a) on a clock on the spaceship? Ans in Years
One of the primary goals of the Kepler space telescope is to search for Earth-like planets....
One of the primary goals of the Kepler space telescope is to search for Earth-like planets. Data gathered by the telescope indicates the existence of one such planet named Boralis orbiting a star 120 ly from our solar system. Consider an interstellar spaceship leaving Earth to travel to Boralis. The ship can reach 0.70c almost instantly and can also decelerate almost instantly. The ship is 175 m long in its reference frame. (a) What is the length of the moving...
One of the primary goals of the Kepler space telescope is to search for Earth-like planets....
One of the primary goals of the Kepler space telescope is to search for Earth-like planets. Data gathered by the telescope indicates the existence of one such planet named Boralis orbiting a star 120 ly from our solar system. Consider an interstellar spaceship leaving Earth to travel to Boralis. The ship can reach 0.96c almost instantly and can also decelerate almost instantly. The ship is 169 m long in its reference frame. (a) What is the length of the moving...
The is opened at a certain time. How much time does it take for the current...
The is opened at a certain time. How much time does it take for the current to drop to 1/1000 of its initial value?
how much force does it take to stretch a 10m long, 1 cm diameter steel cable...
how much force does it take to stretch a 10m long, 1 cm diameter steel cable by 6.0 mm?
The U.S. government’s debt is currently about $20 trillion, which is 105% of GDP. How much...
The U.S. government’s debt is currently about $20 trillion, which is 105% of GDP. How much debt is too much debt for our country?
piloting a state-of-the-art spaceship to α Centauri, which is a star about 4 lightyears away as measured from Earth. Your ship cruises at a speed of 0.6c. For this problem, you can assume that Earth and a Centauri are at rest with respect to each other. At your journey's midpoint, you decide to send a souvenir package to your folks back home. You launcha probe back to Earth at a speed of v 0.8c from your perspective. a. How long...
please help
2. Now we are going to look at problem 1 again, but this time we are going to set the spaceship as the inertial stationary frame, meaning that the Earth is defined as the moving frame and traveling away from you. 1B:.8740 ; P = 2.058yr a. Using your answer from Ib as the speed of the moving frame, V, what is the speed of the Earth with respect to your spaceship? Using a Galilean Transformation equation for...
One of the primary goals of the Kepler space telescope is to search for Earth-like planets. Data gathered by the telescope indicates the existence of one such planet named Boralis orbiting a star 120 ly from our solar system. Consider an interstellar spaceship leaving Earth to travel to Boralis. The ship can reach 0.70c almost instantly and can also decelerate almost instantly. The ship is 175 m long in its reference frame. (a) What is the length of the moving...
The is opened at a certain time. How much time does it take for the current to drop to 1/1000 of its initial value?
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