How far above the ground should the top of the mirror be placed so that the alien can see the top of his body?
An alien from another planet has a height of 2.2 meters with one eye exactly in the middle of his body. The alien is standing 5.0 meters away from a vertical plane mirror. How far above the ground should the top of the mirror be placed so that the alien can see the top of his body?
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How far above the ground should the top of the mirror be placed so that the alien can see the top of his body?
1. You desire to place a mirror through which your entire body can be seen on...
1. You desire to place a mirror through which your entire body can be seen on a wall, but you don't want any more mirror surface than is necessary to see your entire body. (a) Draw a diagram showing you, the mirror, and the light rays that allow you to see the top of your head and the tips of your toes through the mirror. (b) Use these rays to prove that the minimum mirror height is half your height,...
Randall is driving down a long steep hill (18°) at a steady 12.4 m/s? A. What...
Randall is driving down a long steep hill (18°) at a steady
12.4 m/s?
A. What is his velocity after 5.7 second of driving?
B. What is his velocity in the x and y directions?
C. How far up the hill does he drive in 5.7 seconds?
D. What is his vertical displacement in those 5.7
seconds?
For each question be sure to do the Prepare step: visual representation with variables and axes, collect known values, identify unknown quantities. 1....
Randall is driving down a long steep hill (18°) at a steady
12.4 m/s?
A. What is his velocity after 5.7 second of driving?
B. What is his velocity in the x and y directions?
C. How far up the hill does he drive in 5.7 seconds?
D. What is his vertical displacement in those 5.7
seconds?
For each question be sure to do the Prepare step: visual representation with variables and axes, collect known values, identify unknown quantities. 1....
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