Physics 2

Given an object height of 3 cm and a convex lens of focal length 10cm. Determine the position and size of the produced image if the object is placed at:

A. 30 cm

B. 5 cm
A concert A has a frequency of 440 hertz. What is its wavelength, and what is the frequency and wavelength of an A one octave higher?
Two charged plates are set up as pictured below. A charged ball of mass m and charge q is to be thrown between the plates with initial velocity V\(_0\). The ball is a vertical distance, d, from either of the plates. Find how far down range the ball travels.
Below are two charged spheres separated by a distance, X = 0.1 m from center to center. The sphere on the left carries a charge of 10 nC and has a radius 0.01 m. The sphere on the right carries a charge of -2 nC. Find the electric field at point A, which is 0.005 m from the center of the large sphere.
What are the voltage drops across each capacitor? How much energy will capacitor C store?

A = 20 \(\mu\)F

B = 5 \(\mu\)F

C = 10 \(\mu\)F

The battery is 12 V
A region of the rectangular wire loop shown below sits in a uniform magnetic field directed into the page, \(\vec{B}\) = 7.0 T. The coil is being pulled to the right (shown in blue) at a velocity of 3 m/s. Note that the loop is being pulled into a region that does not contain a magnetic field. Find the:

A. Magnitude of the induced EMF

B. Current and its direction

C. Force required to pull the wire loop at constant velocity
In the circuit below, the switch "sw" has been open for a long time. At t = 0, the switch closes. Write, as a function of time for t > 0:

A. the current in the inductor

B. the energy in the inductor
A light bulb is placed to the left of a convex lens of focal length 20 cm. The image formed is enlarged 5 times and is to the right of the lens. Find the image distance and the object distance.
What is the resonant frequency of sound when you blow across an empty soda bottle that is 15 cm tall?
A charged ball of mass m and charge Q is hung from a mass less pendulum. A uniform electric field along the horizontal causes the pendulum to swing up an angle \(\theta\). Find the magnitude of the electric field.

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