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A rare earth element known as dysprosium has unique magnetic properties that make it a mandatory input in the manufacturing of wind turbines. All current mines for dysprosium have been exhausted. The last known location to; this element is in a mountain range in China. The input costs associated with mining this remaining source of dysprosium are expected to be signi?cantly higher than the input costs of previous mining operations. Using the supply an demand model, explain the changes you expect to happen (1) in the market for dysprosium and (2) the market for wind turbines.
a solar flare causes 10 of the population to die from sunburn. of the 10 who die 10 individuals were albino and the
A tank of gasoline (n = 1.40) is open to the air (n = 1.00). A thin film of liquid floats on the gasoline and has a refractive index that is between 1.00 and 1.40. What is the refractive index of the film
A 5.0 g hollow plastic ball is attached by a thread to the bottom of a beaker. Determine the diameter of the ball
A lady ate a whole medium size pizza storing up 120 food Calories. This energy is used to heat up 2 liters of water from a certain initial temperature to a final temperature of 80 deg.C
the plates of a spherical capacitor have radii 37.0 mm and 49.0 mm.a calculate the capacitance.b what must be the plate
Spark plugs should be tightened to a specified torque of 13.64Nm. What force must you exert on the wrench
The two 20 kg plates on the left side have slipped. One is 30 cm from the left end of the bar, and the other is 20 cm from the left end of the bar.
Two boat landings are 1.0 km apart on the same bank of a stream that flows at 1.8 km/h. What is the speed of the boat relative to the water
A soap fil (n=1.33) is 465 nm thick and lies on a glass plate (n=1.52). Sunlight, whose wavelengths (in vacuum) extend from 380 to 750 nm, travels during air and strikes the film perpendicularly.
How long will it take for each skydiver to reach the ground (assuming the time to reach terminal velocity is small)? Assume all values are accurate to three
A light ray travels inside a large glass block and approached the glass-air interface at some angle relative to the normal (perpendicular to the surface). After entering the air, the light ray's
The rope running between her and the sled makes a 45 degree angle with the horizontal. If the coefficient of friction between the sled and the snow is 0.1, what must the coefficient of friction between her shoes and the ground be for her to move t..
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