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A material with an index of refraction of 1.33 is used to coat glass. The index of refraction of glass is 1.5. What is the minimum thickness of the coating that will minimize the reflection of light with a wavelength of 5470A? Answer in units of μm.
Now assume that the coating's index of refraction is 1.6. Assume that the rest of the system (from the previous question) remains the same. What is the minimum thickness of the coating needed to minimize the reflection of this light now? Answer in units of A?µm
you have book a 6kg which sits on top of book b 15kg which sits on top of a table 30 kg. a draw a free body diagram of
A solenoid is 15 cm long and has 9000 turns. The current through the solenoid is 6A. What is the value of the magnetic field created
In Millikan's experiment, an oil drop of radius 1.85 μm and density 0.852 g/cm3 is suspended in chamber C whilst a downward electric field of 0.62 × 10^5 N/C is applied. Find the charge on the drop, in terms of e.
The four tires on the author's car are inflated to an absolute pressure of 2.8 multiply.gif 105 Pa.what is the contact area between each tire and the ground
A 2300 kg truck has put its front bumper against the rear bumper of a 2400 kg SUV to give it a push. What is the maximum possible acceleration the truck
Two resistors, 62.0 ohms and 54.0 ohms, are connected in parallel. The current through the second resistor is 2.00 A. Determine the current in the first resistor
A person lifts a 3.0 kg cement block a vertical distance of 1.24 m and then carries the block horizontally a distance of 11.90 m. How much work is done by the person in the process
The magnetic field at the center of a 0.70-cm-diameter loop is 3.0mT. What is the current in the loop
A helium balloon ride lifts up passengers in a basket. Assume the density of air is 1.28 kg/m3, find the volume of helium in the balloon when fully inflated
A 200g block on a 50.0cm long string swings in a circle on a frictionless table at V1=45.0m/s comes to rest in 68.0s. Determine is the tangential acceleration? What is the magnitude of the tangential force?
In a church choir loft, two parallel walls are 5.88 m apart. The singers stand against the north wall. The organist faces the south wall, sitting 0.619 m away from it. So that she can see the choir, a flat mirror 1.147 m wide is mounted in the south ..
A 0.43-kg metal sphere oscillates at the end of a vertical spring. As the spring stretches from 0.12 m to 0.23 m, What is the spring constant of the spring
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