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A beam of light is polarized in the horizontal direction and has an intensity I. It then passes through a polarizer oriented at an angle of 39 degrees from the horizontal direction.
A. What fraction of the original intensity I pass through this polarizer?
B. If a second polarizer is aligned at an angle of 21 degrees to the vertical, what fraction of the original intensity I pass through this polarizer?
A simple pendulum has a mass of 0.650 kg and a length of 2.00 m. It is displaced through an angle of 7.0° and then released. What is the maximum speed of the bob
If the detector moves toward the source, vd is positive; if the source moves toward the detector, vs is positive. What frequence is detected by a stationary train
A 1.50 kg snowball is fired from a cliff 13.0 m high with an initial velocity of 14.0 m/s, directed 41.0° above the horizontal. If that gravitational potential energy is taken to be zero at the height of the cliff, what is its value when the snowbal..
an object 3.28 cm high is placed 11.2 cm in front of a convex mirror with radius of curvature of 8.48 cm. where is the
a -58nC charge is distributed uniformly along the x-axis from x = -1.3 m to x = 3.4 m. Consider a point at y = 2.2 m on the y-axis. a) what is the x-component of the electric field at the point
A 20 {rm kg} child plays on a swing having support ropes that are 2.3 {rm m} long. A friend pulls her back until the ropes are 39.0^circ from the vertical and releases her from rest.
A rms AC voltage of 118 V at 60 Hz is applied to an RLC circuit with 11.8 mH inductor, 0.171 µF capacitor, and 43.1 ? resistor in series. What is the power factor of the circuit
A photon of energy E collides with an electron at rest. Calculate the maximum amount of energy Ek that may be transfered to the electron. Make a graph of Ek versus E, labeling the scale in electron volts.
Two long, straight wires are separated by 0.12 m. The wires carry currents of 1.0 A in opposite directions, as the drawing indicates. Find the magnitude of the net magnetic field at the point A
The velocity vs time graph of an object is approximated by a triangle which starts at v=0 at t=0, rises to a maximum of v=6 m/s at t=6 sec, then returns to zero at t=10 sec. How far did the object travel?
A projectile is launched from ground level at an angle of 1.0° above the horizontal. It returns to ground level. To what value should thelaunch angle be adjusted, without changing the launch speed, sothat the range triples?
a nonconducting line segment of length l carries a positive charge with linear charge density ? that is there are ?
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