I have a problem I'm trying to solve:
A mass weighing 32 pounds stretches a spring 2 feet. Determine the amplitude and period of motion if the mass is initially released from a point 1 foot above the equilibrium position with an upward velocity of 2ft/s. How many complete cycles will the mass...
I'm trying to integrate the following expression:
\int\frac{E_0*sin(\omega*t)}{L}*e^{\frac{R}{L}t}dt
Any hints on what method to use? I'd like to figure out how to do this integral by hand so please don't just give me the answer. I've already used my calculator to get that. Thanks for the help.
Homework Statement
The capacitors in the Figure are initially uncharged and are connected, as in the diagram, with switch S open. The applied potential difference is V_ab = + 210V
What is the potential difference V_ad after switch S is closed?
Homework Equations
Q=C_eq*V
V_ab=Q/C...
Chrisk, I've attached my attempt at this problem. Hope you don't mind the .pdfs it's easier for me to type the equations in word rather than on the physics forums. Thanks for your any help you can give.
I've attached a .pdf with the problem explanation, questions, and answers. I can't figure out for the life of me how to get these answers though. I've setup a countless number of integrals and can't seem to get it right. Any help you guys can give me would be greatly appreciated.
*EDIT*
Not...
I'm still slightly confused. So I can find E at the center of the ring using E=kQq/r. But, since W=-(U_f-U_i) how do I get U from E? Since E=kq/r^2 and U=kq_1*q_2/r would you just multiply the E you get by qr and if so what q would you use: the charge on the ring or the charge on the ball...
Homework Statement
A ring of diameter 7.10 cm is fixed in place and carries a charge of 5.00 μC uniformly spread over its circumference. How much work does it take to move a tiny 3.40 μC charged ball of mass 1.70 g from very far away to the center of the ring?
Homework Equations
I tried...
By use Gauss's law do you mean \Phi=\frac{q}{\epsilon_0}? If so don't I need to know that permittivity of free space (\epsilon_0), which isn't given in the problem?
Homework Statement
A point charge q_1 = 3.45 nC is located on the x-axis at x = 1.90 m, and a second point charge q_2 = -6.95 nC is on the y-axis at y = 1.20 m.
What is the total electric flux due to these two point charges through a spherical surface centered at the origin and with radius...
In my physics class one of the problems we have been given to solve is:
"A small button placed on a horizontal rotating platform with diameter 0.330m will revolve with the platform when it is brought up to a rotational speed of 44.0 rev/min, provided the button is a distance no more than...