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a beam of white light is shined at normal incidence onto the outside of a soap bubble(index of soap solution = 1.340). An observer looking at the bubble, opposite to the direction of the beam, notices that green light (L= 555.0 nm) is particularly bright in the reflected spectrum. What is the thinnest wall thickness of the bubble? Express in micrometers.
Two resistors connected in series have an equivalent resistance of 569.5 Ohms. When they are connected in parallel, Find the resistance of each resistor
A cat walks along a plank (length = 4.00 m and mass = 7.00 kg). What is the mass of the cat
Sam fields a baseball hit to him in the left field. He then throws the ball to third to force out the base runner, Mike. How high in the air does the ball go
A 5.0-kg projectile is fired over level ground with a velocity of 200.0 m/s at an angle of 30.0 degg above the horizontal. Over the entire trip the work done by the air forces is
A saw blade has a mass of 0.5 kg and a radius of 10 cm and is rotating at 300 rpm. What frictional torque acts on the saw blade as it slows to a stop
A -6.00 µC charge is moving with a speed of 8.20 104 m/s parallel to a very long, straight wire, Find the magnitude and direction of the force on the charge.
Space vehicles traveling through Earth's radiation belts can intercept a significant number of electrons, Find the resulting surface charge density
Resistance and potential difference in an electrical circuit.
Four point charges, Q1(-15,0,15), Q2(15,0,15), Q3(15,0,-15) and Q4(-15,0,-15) in cartesian coordinates are surrounded with air. If charges Q2 = -Q3 = 2 microCoulomb, Find the forces applied to each point from other charges
Two waves of the same frequency have amplitudes 1.31 and 2.94. What is the resultant amplitude
Two small plastic spheres are given positive electrical charges. When they are 15 cm apart, the repulsive force between them has magnitude of 0.220N. what is the charge on each sphere
Copper has 8.5×1028 electrons per cubic meter. How many electrons are there in a 25.0 cm length of 12-gauge copper wire, what is the average drift speed of the electrons along the wire
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