So this is the quaiton that i have problem w/:
A 4kg bundle starts up a 30 degree incline with 128J of kinetic energy. How far willl it slide up the incline if the coefficient of kinetic friction between bundle and incline is 0.3?
Because E_initial + Work = E_final and the Work done in the...
I am stuck in this gas problem:
You are given a 10.00 gram solid mixture of Ca(ClO_3)_2 and Ca(ClO)_2. When this mixture is heated, both componds decomplse, releasing oxygen gas and leaving behind solid CaCl_2
When this 10.00gram mixture is sealed in a 10.0-Liter evacuated vessel and heated...
I am new to Chem, and I don't quite understand how to solve this problem:
Component of citrus fruits is the bitter compound limonin, which contains only carbon, hydrogen, and oxygen. When a 1.000-gram sample of limonin is subjected to complete combustion, 2.432 grams of CO_2 and 0.574 grams...
Given a wavelength length \alpha, what is the maximum Width (D) of a single slit, which would have no diffraction minima?
It seems like a proof problem to me and I am trying to get a head start.
should I use D * sin (\theta) = m \alpha ?
I find the angle to be 14.48 degree, but I didn't use the 2 meters that the question provdied. Am I missing something?
I use d sin (\theta) = (m + \frac {1}{2} )(0.025m) where d = 0.05m, and m = 0 to find \theta.
This question is related to the wave nature of light from Giancoli:
Water waves having parallel crests 2.5cm apart pass through two openings 5cm apart in a board. At a point 2.0m beyond the board, at what angle relative to the "straight-through" direction would there be little or no wave...
Ok, this problem shows up on my test today and I was wondering how you can solve it:
A circular coil of wire has a diameter of 20 cm and contains 10 loops, internal resistance of 8 ohms, and the coil is placed in a 2.00T external magnetic field. When 1 volt is applied to the coil, determine...
Yes, Ray B is obvioulsy travelling in the shortest distance.
But as we know that light is traveling at the speed of 3 * 10^8 m/s, what is significant about this problem? ;-)
This is a true of false question from my homework:
Three light rays start out from a candle flame at the same time. To the right of the candle there is a lens, and to the right of the lens there is a screen. Ray A goes through the edge of the lens. Ray B goes through the center of the lens...
I dont know how the light would travel after entering the second len, the attachment shows where the rays are after the first len.
It is drawn in scale, and I should expect the final image, which is inverted, have the same size as the original (becasue I got the mangification to be -1), and...
for i to be real and have two solutions, \sqrt{S^2 - 4Sf} must be greater than 0.
So, s^2 - 4sf > 0
s^2 > 4sf
s > 4f and we set s = i + o before, so we get the answer for the first two questiosn.
But I don't know how you can get i = \frac{S \pm \sqrt{S^2 - 4Sf}}{2}, from i^2 +...
after \frac{1}{f} = \frac{1}{i} + \frac{1}{S-i} , I have f = \frac{si - i^2}{s} , and then i set the equation equals to zero: i^2 + fs - si = 0 , but i dont get how you can solve for i from i = \frac{S \pm \sqrt{S^2 - 4Sf}}{2}.
A bright object is placed on one sid eof a converging lens of focal length f, and a white screen for viewing the image is on the opposite side. The distance d_T = d_i + d_0 between the object and the screen is kept fixed, but the lens can be moved.
Show that if d_t > 4f , there will be two...
now i have \frac{1}{-5} + \frac{1}{d_i} = \frac{1}{-10} and after calculation, i have d_i = 10cm
it means that the final position of the image is 10 cm behind of the second len right? (when i say behind it, i mean the image would be in between the first and second len), and it is also a real...
Two lenses, one converging with focal length 20cm and one diverging with focal length -10cm, are placed 25cm apart. An object is placed 60cm in front of the converging lens. Determine (a) the position and (b) the magnification of the final image formed.
I have a problem with this becasue...
hohoho
nvm. you are right -3 and 3 will produce a different d_0, so if the two students are placing the obejct at exactly those location, then the magnification would be 3, even though one of them may be inverted.
Thx