The moon's distance from the earth is ~ 3.84 × 108m. A laser pointer is mounted...
The Moon's distance from Earth is 3.84 x 1010 cm. A laser pointer mounted on a turntable such that its beam repeatedly sweeps over the surface of the Moon. If it rotates at a period of 8 s, prove that its impact spot travels across the Moon at about the speed of light.
Throughout this homework assignment, you may use c to denote the speed of light in both your work and final answers without using its numerical value. (This is actually preferred unless the problem requires the numerical value of c.) 1. The moon's distance from the earth is ~ 3.84 × ǐ0sm. A laser pointer is mounted on a turntable such that its beam repeatedly sweeps over the surface of the moon. If it rotates at a period of 4s, prove...
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...
Problem 9.07 - Enhanced - with Solution 2 of 4 A Review Constants A laser beam aimed from the earth is swept across the face of the moon. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Rotation of a compact disc. Part A If the beam is rotated at an angular velocity of 1.50 x 10-rad/s, at what speed does the laser light move across the moon's surface? (See Appendix E in...
Many communication satellites are placed in a circular orbit around the Earth at a radius where the period (the time to go around the Earth once) is 24 hours. If the satellite is above some point on the equator, it stays above that point as the Earth rotates, so that as viewed from the rotating Earth the satellite appears to be motionless. That is why you see dish antennas pointing at a "fixed" point in space. (a) Calculate the radius...