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Light rays in a material with index of refrection 1.25 can undergo total internal reflection when they strike the interface with another material at a critical angle of incidence. Find this material's index of refraction when the required critical angle is 67.9°.
What is the average linear speed of Jupiter about the Sun, (The distance from the Sun to Jupiter is 7.78 1011 meters. The orbital period around the Sun is 4332.7 days.)
Water at 25 degrees celius is pumped from 100kPa to 5MPa in a pump with an efficiency of 75%, Calulate the temperature rise in the real pump
How does hydrogen bonding affect large molecules like proteins? What shapes do proteins take because of this effect?
The wheel of a car has a radius of 0.365 m. The engine of the car applies a torque of 284 N · m to this wheel, which does not slip against the road surface. Since the wheel does not slip, the road should be applying a force of static friction to t..
Visible light passes through a diffraction grating that has 900 slits per centimeter, What is the difference between these wavelengths
A ball is thrown straight up from the edge of the roof of the building. A second ball is dropped from the roof a time of 1.01 s later. You may ignore air resistance.
Calculate the number of coulombs of positive charge in 270 cm3 of (neutral) water. (Hint: A hydrogen atom contains one proton and an oxygen atom contains eight protons.) I keep getting 1.4E7 and its showing up wrong.
A 4.7 e2 kg hot-air balloon takes off from rest at surface of the earth. The nonconservative wind and lift forces take the balloon up, doing +9.70 multiplied by 104J of work on the balloon in the process. At what height above the surface of the ea..
If the average frequency emitted by a 200,-, rm W light bulb is 5.00 times 10^ {14}, {rm Hz}, and 10.0 percent of the input power is emitted as visible light, about how many visible-light photons are emitted per second.
Your report should comprise be in the form of a two page memo/document that discusses the regulations and explain how they will apply to your hiring process.
An 77 kg quarterback jumps straight up in the air right before throwing a 0.43 kg football horizontally at 15 m/s. Illustrate how fast will he be moving backward just after releasing the ball?
A person swimming underwater sees a lifeguard who is standing in the shallow part of the pool; the water comes up to the lifeguard's waist. In what way does the swimmer see lifeguard's upper body distorted.
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