Recent content by jamiewilliams

Homework Statement When a resistor is connected by itself to an ac generator, the average power delivered to the resistor is 0.952 W. When a capacitor is added in series with the resistor, the power delivered is 0.477 W. When an inductor is added in series with the resistor (without the...

Homework Statement The drawing shows two positive charges q1 and q2 fixed to a circle. At the center of the circle they produce a net electric field that makes an angle 28.6° with the vertical axis, measured counterclockwise. Determine the ratio q2/q1. [the drawing shows a circle with two...

Didn't even notice that, I haven't thought about differentiation (or calculus) in a few semesters :)

I feel like this may be a silly question, but I am not sure what to use in the kinematic equations for acceleration? I know that acceleration is constant but I don't know what to use for its value.

it is :)

Thank you so much! I just subtracted the min frequency from the max and set it equal to 1.83 Hz. I did, however, use the v(max)=Aω to find the amplitude, but versus time the other equation would have worked better. :)

No distances are given. The only given data is velocity at point A, θ=36.0, and the speed of sound. I know the answer is 237 m/s, but I have no idea how to get there.

I have L1^2 + (1.21)^2 = (L1 + .57114)^2 and I can't seem to move the algebra around to get the right answer for L1. I know that (from the book) L1= .996m and L2= 1.57m, but I never arrive at the right answer. Am I missing a step or just getting the algebra wrong?

Homework Statement A jet is flying horizontally [drawing shows an observer on the ground, a plane overhead at point B, and an outline of the plane from it's observed position to the left at point A. The angle between the observer and point A is 36°.] When the plane is directly overhead at B, a...

Homework Statement A microphone is attached to a spring that is suspended from the ceiling. Directly below on the floor is a stationary 540-Hz source of sound. The microphone vibrates up and down in simple harmonic motion with a period of 2.20 s. The difference between the maximum and minimum...

Homework Statement One microphone is located at the origin, and a second microphone is located on the +y-axis. The microphones are separated by a distance of D= 1.21m. A source of sound is located on the +x-axis, its distance from microphones 1 and 2 being L1 and L2, respectively. The speed of...