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Light precedes through three polarizing sheets. Unpolarized light enters the 1st sheet and the resultant vertically polarized beam continues through the 2nd and 3rd. The 2nd sheet has its transmission axis at 50.° with respect to the 1st, and the 3rd is at 70.° with respect to the 1st.
(a) What percent of the original intensity emerges from filter #1?
(b) What percent of the original intensity emerges from filter #2?
(c) What percent of the original intensity emerges from filter #3?
(d) If filter #2 has its transmission axis changed to 30.°, what % intensity now emerges from the 3rd filter?
A 12.0V dc battery having no appreciable internal resistance, a 146.5? resistor, an 10.6mH inductor, and an open switch are all connected in series. After the switch is closed, what is the maximum energy stored in the inductor
An interstate highway has been built through a neighborhood in a city. In the afternoon, the sound level in an apartment in the neighborhood is 95.0 dB as 105 cars pass outside the window every minute. Late at night, the traffic flow is only six c..
How various g's of acceleration does the astronaut experience when the device is rotating at top speed? Each 9.80 m/s^2 of acceleration is 1 g.
A 61 kg speed skater with the velocity of 16 m/s comes into a curve of 18 m radius. How much friction should be exerted between skates and ice to negotiate the curve.
Find the forces that act on each of the three charges. a) q = -1.0 µC in vector form b) q= 3 µC in vector form b) q =5 µC in vector.
On a winter day when the temperature is 4.00, the resistance of the carbon resistor is 217.4. Evaluate what is the temperature on a spring day when the resistance is 215.8
A 2 kg projectile is fired with an initial speed of 135 m/s at an angle of 68° with the horizontal. At the top of its trajectory, the projectile explodes into two fragments of masses 0.72 kg and 1.28 kg. At 3.8 s after the explosion, the 1.28 kg f..
An 88? resistor has a current of 0.70A and is connected in series with a 130? resistor. What is the emf of the battery to which the resistors are connected
A piece of copper wire has a resistance per unit length of 6.45 10-3 ?/m, Find the magnetic field strength at the center of the coil
If astronauts could travel at v = 0.950 c, we on Earth would say it takes (4.20 / 0.970) = 4.42 years to reach Alpha Centauri, 4.20 light-years away. The astronauts disagree. How much time passes on astronauts' clocks? What is the distance to Alph..
If you place the box on a dolly of mass 4.7 and with coefficient of rolling friction 2.0×10−2, illustrate what horizontal acceleration would that 154 force provide?
A cannon ball is shot straight upward with a velocity of 77.50 m/s. What is the maximum height attained by the cannon ball
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