5. [-/2 Points] DETAILS WAMODPHYS1 2.P.015. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE A rod is at rest in frame K' which is moving at some speed in the positive direction along the x-axis relative to frame K. An observer in frame k' sees the rod as L 'long and the angle between the rod and the x' axis as o' = 27:09. An observer in frame K sees the angle as 8 # 48.09, Determine the following (a) Speed of frame K relative to K in terms of the speed of light c. (b) Length of the rod to an observer in frame K in terms of Lol5. [-/2 Points] DETAILS WAMODPHYS1 2.P.015. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE A rod is at rest in frame K' which is moving at some speed in the positive direction along the x-axis relative to frame K. An observer in frame k' sees the rod as L 'long and the angle between the rod and the x' axis as o' = 27:09. An observer in frame K sees the angle as 8 # 48.09, Determine the following (a) Speed of frame K relative to K in terms of the speed of light c. (b) Length of the rod to an observer in frame K in terms of LolRocket A travels towards the Sun at 0.691c with respect to an observer on Earth, Rocket B travels at 0.933c with respect to rocket A in the opposite direction. (Assume rocket B travels the +x direction.) rocket A rocket B Q6 Sun Earth (a) Is rocket B's speed greater in Earth's reference frame or in rocket A's reference frame? Earth's reference frame rocket A's reference frame not enough information (b) How fast (in terms of c) is rocket B traveling with respect to an observer on Earth? (c) what is the length (in m) of rocket B in Earth's reference frame if rocket B has a length of 4,68 m in its own reference frame? m Activate WindowRocket A travels towards the Sun at 0.691c with respect to an observer on Earth, Rocket B travels at 0.933c with respect to rocket A in the opposite direction. (Assume rocket B travels the +x direction.) rocket A rocket B Q6 Sun Earth (a) Is rocket B's speed greater in Earth's reference frame or in rocket A's reference frame? Earth's reference frame rocket A's reference frame not enough information (b) How fast (in terms of c) is rocket B traveling with respect to an observer on Earth? (c) what is the length (in m) of rocket B in Earth's reference frame if rocket B has a length of 4,68 m in its own reference frame? m Activate Window3. [-/4 Points] DETAILS WAMODPHYS1 2.P.013. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An event occurs in frame Kat x - 5 m, y = 5 m, z = 4 m, and t = 3 5. Frame K' is traveling along the x-axis of K in the positive direction with a speed 0.3c and the two frames coincide att = t' = 0. Determine the coordinates of the event in frame K'. (Enter your answers in m for x', y' and g"and in s for t.) m m3. [-/4 Points] DETAILS WAMODPHYS1 2.P.013. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An event occurs in frame Kat x - 5 m, y = 5 m, z = 4 m, and t = 3 5. Frame K' is traveling along the x-axis of K in the positive direction with a speed 0.3c and the two frames coincide att = t' = 0. Determine the coordinates of the event in frame K'. (Enter your answers in m for x', y' and g"and in s for t.) m m15. [-/6 Points] DETAILS WAMODPHYS1 2. P.035. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Three spaceships all broadcast a signal at the same frequency f. Spaceship #1 is at rest, spaceship #2 is traveling away from #1 at a speed y, and spaceship #3 is traveling away from #1 in a direction opposite that of *2 and also at a speed v. Determine the following in terms of fo when v - 6 65c. (a) Frequency measured by # 1 broadcast from #2 (b) Frequency measured by #1 broadcast from # 3 fo (c) Frequency measured by -2 broadcast from #1 fo (d) Frequency measured by - 2 broadcast from #3 fa (@) Frequency measured by =3 broadcast from # 1 (f) Frequency measured by =3 broadcast from # 2 Walkany Windows15. [-/6 Points] DETAILS WAMODPHYS1 2. P.035. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Three spaceships all broadcast a signal at the same frequency f. Spaceship #1 is at rest, spaceship #2 is traveling away from #1 at a speed y, and spaceship #3 is traveling away from #1 in a direction opposite that of *2 and also at a speed v. Determine the following in terms of fo when v - 6 65c. (a) Frequency measured by # 1 broadcast from #2 (b) Frequency measured by #1 broadcast from # 3 fo (c) Frequency measured by -2 broadcast from #1 fo (d) Frequency measured by - 2 broadcast from #3 fa (@) Frequency measured by =3 broadcast from # 1 (f) Frequency measured by =3 broadcast from # 2 Walkany Windows12. [-/1 Points] DETAILS WAMODPHYS1 2. P.032. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE A space probe speeding toward the nearest star moves at 0.290c and sends radio information at a broadcast frequency of 2:35 GHZ. What frequency (in GHz) is received on Earth? GHZ Submit Answer 13. [-/1 Points] DETAILS WAMODPHYS1 2.P.033. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A train with a monochromatic headlight is approaching you at a speed of ( -Jc. If a student on the train measures the wavelength of the light to be 590 mm, what do you measure the wavelength (in nm) to be? nm Submit Answer 14: [-/1 Points] DETAILS WAMODPHYS1 2.P.034. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Excited hydrogen atoms emit 22.5 cm microwaves A planet known to have an abundance of hydrogen in its atmosphere is moving away from the Earth and it is determined (on Earth) that light assumed to be from the hydrogen has a wavelength of 27.2 cm. Determine the speed of the planet relative to the Earth in terms of c.12. [-/1 Points] DETAILS WAMODPHYS1 2. P.032. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE A space probe speeding toward the nearest star moves at 0.290c and sends radio information at a broadcast frequency of 2:35 GHZ. What frequency (in GHz) is received on Earth? GHZ Submit Answer 13. [-/1 Points] DETAILS WAMODPHYS1 2.P.033. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A train with a monochromatic headlight is approaching you at a speed of ( -Jc. If a student on the train measures the wavelength of the light to be 590 mm, what do you measure the wavelength (in nm) to be? nm Submit Answer 14: [-/1 Points] DETAILS WAMODPHYS1 2.P.034. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Excited hydrogen atoms emit 22.5 cm microwaves A planet known to have an abundance of hydrogen in its atmosphere is moving away from the Earth and it is determined (on Earth) that light assumed to be from the hydrogen has a wavelength of 27.2 cm. Determine the speed of the planet relative to the Earth in terms of c.4. [-/6 Points] DETAILS WAMODPHYS1 2.P.014. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE At the time t = 0 a light signal is sent from the origin of frame k to the point x = 4 m, y = 8 m, and z = 8 m, frame K' is coincident with frame k at the time ( = (' = 0 and is moving along the x-axis of frame K in the positive direction at a speed of v = D.Bc. Determine the following. (a) time (in s) at which the signal is received in frame k (b) the coordinates (in m) for the position (X. >" and z' in m) in frame k" m (c) the time (in's) it took the light signal to reach the specified point according to an observer in frame *" using the results of part (b) (d) the time (in s) at which an observer in frame A says the signal arrived at the specified point, using the time transform4. [-/6 Points] DETAILS WAMODPHYS1 2.P.014. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE At the time t = 0 a light signal is sent from the origin of frame k to the point x = 4 m, y = 8 m, and z = 8 m, frame K' is coincident with frame k at the time ( = (' = 0 and is moving along the x-axis of frame K in the positive direction at a speed of v = D.Bc. Determine the following. (a) time (in s) at which the signal is received in frame k (b) the coordinates (in m) for the position (X. >" and z' in m) in frame k" m (c) the time (in's) it took the light signal to reach the specified point according to an observer in frame *" using the results of part (b) (d) the time (in s) at which an observer in frame A says the signal arrived at the specified point, using the time transform10. [-/2 Points] DETAILS WAMODPHYS1 2.P.030. MY NOTES ASK YOUR TEACHER PRACTICE AN Frame K' is moving away from frame k at a speed of 0.81c relative to K. A technician in k' fires a proton gun and the protons have a speed 0.59c as measured by the technician. Determine the speed of the protons (in terms of c) as measured by a technician in k for the following circumstances. (a) When the protons are fired towards the technician in K (b) When the protons are fired away from the technician in K Submit Answer 11. [-/2 Points] DETAILS WAMODPHYS1 2. P.031. TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOT A spaceship traveling to Alpha Centauri at 0:95c sends a message home to Earth saying they are at the halfway point. (@) What is the frequency (in GHz] of the message that Earth listeners receive if it was sent at 5.9 GHz? GHE (b) If the thip's transmitter is omnidirectional, what is the frequency (In, CHz) measured at Alpha Centauri? GHZ10. [-/2 Points] DETAILS WAMODPHYS1 2.P.030. MY NOTES ASK YOUR TEACHER PRACTICE AN Frame K' is moving away from frame k at a speed of 0.81c relative to K. A technician in k' fires a proton gun and the protons have a speed 0.59c as measured by the technician. Determine the speed of the protons (in terms of c) as measured by a technician in k for the following circumstances. (a) When the protons are fired towards the technician in K (b) When the protons are fired away from the technician in K Submit Answer 11. [-/2 Points] DETAILS WAMODPHYS1 2. P.031. TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOT A spaceship traveling to Alpha Centauri at 0:95c sends a message home to Earth saying they are at the halfway point. (@) What is the frequency (in GHz] of the message that Earth listeners receive if it was sent at 5.9 GHz? GHE (b) If the thip's transmitter is omnidirectional, what is the frequency (In, CHz) measured at Alpha Centauri? GHZ7. [-/1 Points] DETAILS WAMODPHYS1 2.P.027. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER If a spaceship, approaching the Earth at 0.300c, sends a message capsule toward the Earth at 0.550c relative to the Earth, what is the speed of the capsule relative to the ship? Express your answer in terms of the speed of light, c. Submit Answer 8. [-/1 Points] DETAILS WAMODPHYS1 2.P.028. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Two planets are on a collision course, heading directly toward each other at 0.300c, A spaceship sent from one planet approaches the second at 0.726c as seen by the second planet. What is the speed of the ship relative to the first planet? Submit Answer 9. [-/1 Points] DETAILS WAMODPHYS1 2.P.029. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An observer on Earth sees spaceships A and B approaching each other along a straight line and with the same speed. If the relative speed of the two space ships is 0 950c, determine the velocity (in terms of c) of the two spaceships as measured By the observer on Earth (Enter the magnitude.)7. [-/1 Points] DETAILS WAMODPHYS1 2.P.027. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER If a spaceship, approaching the Earth at 0.300c, sends a message capsule toward the Earth at 0.550c relative to the Earth, what is the speed of the capsule relative to the ship? Express your answer in terms of the speed of light, c. Submit Answer 8. [-/1 Points] DETAILS WAMODPHYS1 2.P.028. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Two planets are on a collision course, heading directly toward each other at 0.300c, A spaceship sent from one planet approaches the second at 0.726c as seen by the second planet. What is the speed of the ship relative to the first planet? Submit Answer 9. [-/1 Points] DETAILS WAMODPHYS1 2.P.029. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An observer on Earth sees spaceships A and B approaching each other along a straight line and with the same speed. If the relative speed of the two space ships is 0 950c, determine the velocity (in terms of c) of the two spaceships as measured By the observer on Earth (Enter the magnitude.)