If you move at the speed of light, how does a light beam move relative to you? Why?
If you move at the speed of light, how does a light beam move relative to...
A beam of profons move at the speed of light. There are 10 proton every meter. (Charge ise - 1.6 x 10-19 Coulombs.) Calculate the current in the bearn. Problem 6 The block has resistivity 25 12-cm. a. Calculate the resistance if the circuit is attached to the left and right ends, b. Calculate the resistance if the circuit is attached to the top and bottom. c. How would you react if one wire were attached at the top, and...
Consider 2 observers moving toward each other at high speed. One fires a light beam toward the other at speed c. What speed v does the second observer measure for the light beam? (a) v > c (b) v = c (c) v < c (d) Depends on magnitude and direction of relative speed of observers.
For an independent study project, you design an experiment to measure the speed of light. You propose to bounce laser light off a mirror that is 50.5 km due east and have it detected by a light sensor that is 133 m due south of the laser. The first problem is to orient the mirror so that the laser light reflects off the mirror and into the light sensor. (a) Determine the angle that the normal to the mirror should...
You are standing on the ground observing the sky. Two spaceships A and B fly past you. Spaceship A is moving at a constant speed of 1000 m/s relative to the ground. Spaceship B is moving opposite to A at speed of 1000 m/s relative to the ground. Spaceship A fires a strobe light that sends out a pulse of light opposite to where it is heading. a) What is the velocity of spaceship A relative to spaceship B? b) What is...
How fast does a 240 −m spaceship move relative to an observer who measures the ship's length to be 160 m ?
How far away is the Moon at apogee if a reflected beam of light takes 2.70 seconds to travel from Earth to the Moon and back? The speed of light is c=3x108 m/s. (Hint: You need to use the definition for the average speed of an object and DON’T FORGET THAT THE TIME GIVEN IN THE PROBLEM IS THE TIME THAT THE BEAM OF LIGHT TRAVELS TWICE THE DISTANCE FROM EARTH TO THE MOON.)
How fast does a 245-m spaceship move relative to an observer who measures the ship's length to be 175m? ?c
In the vacuum, the speed of light is always 3E8 m/s. In fact light is always that speed to you in your local frame. Give an example of where light might be viewed to move “slow” by you, and explain why that happens.
How does the Newton’s theory about light predict the speed of light in the medium denser than the air? What is the reality?
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...