Homework Statement
At what angle will 750nm light produce a second minimum if the single-slit width is 2.0um
Homework Equations
Sin(theta)=n(lambda)/w
The Attempt at a Solution
This is what I got so far
(theta)=sin-1(3x10^-6/2x10^-6)
I dont understand why I keep getting error on my...
Homework Statement
Two sources 6.0 cm apart, operating in phase, produce water waves. A student selects a point on the first nodal line and measures from it 30.0cm to a point midway between the sources and 5.0cm (on the perpendicular) to the right bisector.
a) what is the wavelength
Homework...
Homework Statement
Hello, I'm having an issue with a question I have all the numbers and everything but I cant quite get the answer correctly and its very frustrating..
A mass, m is held at UEP of a vertical spring constant k & allowed to fall. Calculate:
a) The maximum stretch(max bottom)
b)...
Homework Statement
Calculate the impulse(change in momentum) in each of the following situations.
Also, state the direction of the change in momentum.
A 4kg ball strikes a stationary pin head-on at a speed of 3m/s. It continues to move in its original direction, but its speed is reduced to...
Homework Statement
A 0.160 kg ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball.
a) what is the mass of the ball
b) what fraction of the original kinetic energy gets transferred to the second...
alright thaanks dawg really appreciate that, last question in the example he gave so the last line was 50-50 = -30v2'+7.5v2'^2
the left side what if it wasnt 0
WOW WHAT THE ****, OK I DID THAT ONE BEFORE. Its this right? " V1+V1' = V2+V2'" but can u explain why that is that cus it made some sense to me. & I showed my friend this process but, she said it made no sense so.
Homework Statement
m1= 3kg m2= 6kg
v1 = 5m/s v2= 2m/s
d = 3m
DIAGRAM : http://gyazo.com/17b3126726b109256a35f65b86708bb0
Homework Equations
Conservation of momentum:
m1+v1 = m1v1'+m2v2'
Conservation of elastic:
m1v1^2+m2v2^2 = m1v1'^2+m2v2'^2
The Attempt at a Solution
Now my attempt...
Homework Statement
Tarzan plans to cross a gorge by swinging in an arc from a hanging vine. If his arms are capable of exerting a force of 1500N on the rope, what is the maximum speed he can tolerate at the lowest point of his swing? His mass is 85kg; the vine is 4.0m long
Homework Equations...
Homework Statement
Neutral metal sphere A, of mass 0.10kg hangs from an insulating wire 2.0m long. An identical metal sphere B, with charge -q, is brought into contact with sphere A. The spheres repel and settle(a picture just imagine a right angle triangle with 2 objects A and B at the...
yeah, damn. Well I looked through my notes & I did it all wrong, I have to I guess make it into a complex trinomial & complete the square?(This is in terms newtons law, so I dont know how to transition that into coulombs law
Homework Statement
Two small spheres with charges 1.6*10^-5 C & 6.4*10^-5 C, are 2.0m apart. The charges have the same sign. Where, relative to these two spheres, should a third sphere, of opposite charge 3.0*10^-6 C, be placed if the third sphere is to experience no net electrical force? Do we...
Homework Statement
given mass: 100g(the one hanging)
Q1 = -30(mu)C
Q2 = 70(mu)C
Q3 = 50 (mu)C
T=?
Length of tube = 2m
Length of rope = 1m
Homework Equations
Ft + Fg + Felect =0
F =k *q1*q3/d2
The Attempt at a Solution
Those were the equations I have done so far, so the answer is 46N & the...
Its a tube with 3 sphere's on it. sphere 2&3 are connected in together in a rope & sphere one(bottom) has a negative charge & I'm supposed to solve for the tension of the rope.
Hello I was wondering what the equation is to calculate the tension in terms of coulombs law an example problem would be http://gyazo.com/1319551eb367990c75ee0a782e38a2c2