Here,
v = 2d / t
as it went back and forth, hence the factor 2.
Thus,
v = 3.06*10^8 m/s [ANSWER]
During the Apollo 11 moon landing, a retro-reflecting panel was placed on the surface of the...
During the Apollo XI Moon landing, a retro- reflecting panel was erected on the Moon’s surface. When the moon is directly ahead, the speed of light is found by measuring the time it takes a laser beam to travel from Earth, reflect from the screen, and return to Earth. If this interval is measured to be 2.57 s, what is the measured speed of light? Take the center-to-center distance from Earth to Moon to be 3.71 × 10^8 m, and...
The distance between the earth and the moon has been very
accurately measured by reflecting laser light off special
reflectors placed by the Apollo manned moon landings (a) A pulse of
laser light is emitted from the earth, reflects off the moon and
returns. If it takes 2.56s to complete this journey what is the
distance from the earth to the moon? (b) The laser is then made to
scan across the surface of the moon creating a spot that...
The distance between the earth and the moon has been very accurately measured by reflecting laser light off special reflectors placed by the Apollo manned moon landings (a) A pulse of laser light is emitted from the earth, reflects off the moon and returns. If it takes 2.56s to complete this journey what is the distance from the earth to the moon? (b) The laser is then made to scan across the surface of the moon creating a spot that...
19&20
019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 × 1024 kg and 7.36 x 1022 kg, respectively, and the distance from the Earth to the Moon is 3.84 × 100 m Answer in...
019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 x 1024 kg and 7.36 x 1022 kg, respectively, and the distance from the Earth to the Moon is 3.84 x 108 m. Answer in units...
Apollo 11 astronauts Buzz Aldrin and Neil Armstrong placed laser reflectors on the moon on July 21, 1969. Use the expansion law of Gaussian beam to predict the diameter of a ruby laser (λ0 = 6943Å) beam of when it hits the moon (assume mean distance to the moon is 3.85x105 km) for the two cases: a. A laser rod of 2 cm diameter. b. This same laser sent through a telescope backward so that the beam starts with a...
An absorbing panel has to be placed in front of a sound reflecting wall. At what distance from the wall should the panel be placed so that it would be most effective in absorbing sound whose frequency is 773 Hz? (Assume the speed of sound to be 343 m/s. Include units in your answer =? m.
On Apollo Moon missions, the lunar module would blast off from the Moon's surface and dock with the command module in lunar orbit. After docking, the lunar module would be jettisoned and allowed to crash back onto the lunar surface. Seismometers placed on the Moon's surface by the astronauts would then pick up the resulting seismic waves. Find the impact speed of the lunar module, given that it is jettisoned from an orbit 130 km above the lunar surface moving...
4. Mass of Saturn V rocket used during the Apollo 11 mission was 2,380 metric ton (without fuel) on Earth. (a) What is the mass of Saturn V in USCS dimensions of slugs and lbm? (b) After separation from different stages of rocket, the mass of the Lunar Module was 15,103 kg before it landed on moon. What will be its weight in lbf. once it has landed on moon? The gravitational acceleration on the surface of moon is 5.33...
19 & 20
019 (part 1 of 2) 10.0 points On the way to the moon, the Apollo astro- nauts reach a point where the Moon's gravi- tational pull is stronger than that of Earth's. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 x 1024 kg and 7.36x 1022 kg, respectively, and the distance from the Earth to the Moon is 3.84 x 108 m Answer...