Homework Statement
A coating of n1 = 1.33 material is to be added to n2 = 1.50 glass, in order to make it "irridescent."
a) What is the thinnest layer of material which will have a reflection maximum for normal-incidence light at BOTH 400 and 600 nm (vacuum) wavelength?
b) This thickness will...
Homework Statement
[/B]
Two parallel mirrors that face each other are placed along and perpendicular to the x-axis at x = +7.40 m and x = -7.40 m. Assume that a point source of light is placed on the axis at x = +3.30 m. In principle, there will be an infinite number of images generated...
The question is:
A turtle is on a turntable. which is rotating on frictionless bearings at an angular velocity omega.
The turtle walks towards the outside of the turntable (away from the center). Which of the following is true about the system's angular velocity omega and its angular momentum...
I put the first answer as true.
For the second one, the graph shows that the displacement at F is 0 and to find the velocity of that would mean 0/time which would be 0.
For the third one, if the acc. is less than 0, wouldn't that mean it's slowing down? Or just accelerating in the opposite...
The graph below shows a plot of the position of a particle as a function of time. I need help determining whether the statements concerning the motion of the particle are true or false.
The graph: http://imgur.com/yNeHoF3
? - The instantaneous acceleration at B is zero.
True - The...
Okay, okay, so:
diameter = 4 mm = 0.4 cm
length (height) = 5 mm = 0.5 cm
density = 1 g/cm3 OR 1000 kg/m3
Using these units, SA = 0.879645 cm2 and v = 0.06283 cm3.
Correct?
Homework Statement
Insects don't need lungs. They breath through their skins. In this way they can get enough oxygen to fuel the basic metabolism that is common to all life. Approximate an insect by a cylinder of diameter 4mm and length 5mm. Assuming that the density of the insect is...
Well, I tried it out using d = 0.5gt2 and found that the time is 2.78 s.
Then using time, I found that the final velocity was 27.2 m/s. (v = gt)
Then for the snow portion, I tried to find time using the same equation and got 0.028 s which I don't think is right. Waaaaay too fast!
And...
Homework Statement
A person can just survive a full-body collision (either to the front, back, or side) which results in a deceleration that is up about 100 g's. (One g is 9.8 m/s/s). At greater deceleration fatal brain damage will likely occur. If a 66.4 kg man falls of a cliff of height 37.8...
The question is this: When a photon bounces off an electron, it gives some of its energy to the electron. The photon has no mass, however, and it must continue to travel at speed c. How is its reduced energy manifested?
Now, I do somewhat understand what the Compton effect is and I read in my...