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One of ways that a forensic scientist can figure out the make and model of a car from a “hit and run” collision is if they can pick up a piece of plastic from the headlight of the car. The plastics in a car tend to be dissimilar for different makes and models of cars and thus have different indices of refraction which you can find in a table. If you were given a flat piece of plastic from a hit and run, write down a procedure to figure out what type of car was involved in the hit and run. If you put a penny in a coffee cup and look at just the edge of the penny over the rim of the cup and then fill the cup with water, do you see more of the penny, less of the penny or the same amount as the penny as you did without the water? Explain your answer. (A sketch is very useful for this question.) Up until this point, we have assumed that all colors of visible light all have the same index of refraction. This is not completely true. The reason that rainbows form is since many materials have different index of refractions for different colors. If we have a block of plastic similar to what we used in lab and we shine all the colors on it (white light) we will create a rainbow. The light that bends the most is the blue light and the light that bends the least is the red light. Which color has the highest index of refraction when inside plastic block?
In a new (inelastic) collision, the same two bumper cars with the same initial velocities now latch together as they collide. What is the final speed of the two bumper cars after the collision
Potassium is an essential element that normally comprises about 0.30% of a person's body mass. 0.12% of potassium is the radioactive K-40, What's the potassium activity in a 73kg person
so hydrogen atoms have a thermal velocity of about 1000 m/s. How does the energy stored in the magnetic field compare with the kinetic energy in a given volume of space.
A crate of mass 2000 kg is hanging from a crane at the end of a cable 12 m long. what angle will the cable finally make with the vertical
A steel wire is used to stretch a spring. An oscillating magnetic field drives the steel wire back and forth. what stretch of the spring produces a standing wave with six nodes
A puck mass m=0.4 kg is sliding on a frictionless surface at a speed v=2.50 m/s in the x direction and I hits another puck o mass m= .2 kg at rest at the origin. what are the final speeds of the particles
Find out the magnitude of the vertical component of the velocity
Two Stars of equal mass revolve in a circular orbit about a center of mass midway between them. Find the mass of each star
an object with a mass 2.70kg is executing simple harmonic motion, attached to a spring with spring constant k=280 N/m. What is the frequency of oscillation of the object
What is the least coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
A motorist drives south at 28.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.20 min, find the average velocity and degree south of west
How far will it travel before becoming airborne
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