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Consider an electron that can exist only between x = 0 and x = L = 8.4 nm on the x axis. We could say that this electron is confined to a "box" of length L. In this situation, imagine the standing de Broglie waves that can fit into the box. For example, the drawing shows the first three possibilities. Note in this picture that there are either one, two, or three half-wavelengths that fit into the distance L. For each of these cases find kinetic energy of the particle. (complete answers and unit please)
Gas in a container is at a pressure of 1.5 atm and a volume of 4.0m3. What is the work done on the gas (a)if it expands at constant pressure to twice its initial volume? (b) if it is compressed at constant pressure to one-quarter its initial volum..
What is the minimum coefficient of static friction between the road and the tires on a car for the car to go around a flat curve at 45.0 mph
A plane flies at 1.25 times the speed of sound. The sonic boom reaches a man on the ground exactly 1 min after the plane passed directly overhead. What is the altitude of the plane
An FM radio station broadcasts electromagnetic waves at a frequency of 550 kHz. Calculate the wavelength of the waves.
It is desired to cool iron parts from 500°F to 100°F by dropping them into water that is initially at 55°F. how many kilograms of water are needed per kilogram of iron
A uniform bridge of weight 1200kN and of length 17m rests on supports at each end which are 1m wide. Calculate the support force on the bridge at each end
You need to know the height of a room, but you have no tape measure. You fasten one end of a string to the ceiling of the room, How tall is the room
A box on a table top (m = 10 kilogram) is attached via a pulley to a hanging mass (45 kilogram). Obtain the acceleration, frictional force and tension of the system
Assuming the train has an average speed during a trip from the train stop to the airport of 250[km=hr], how long will it take to make the trip [minutes]. Assuming the train can accelerate to its fastest speed in 5[s]
Three blocks are suspended at rest by the system of strings and frictionless pulleys shown in the figure below, where W = 58.0 N, and θ = 25.5o. What are the weights w1 and w2?
A 3.5 mL syringe has an inner diameter of 5.0 mm, a needle inner diameter of 0.24 mm, and a plunger pad diameter, The nurse empties the syringe in 2.3 s. What is the flow speed of the medicine through the needle
The 66.5 kilogram climber is supported in the "chimney" by the friction forces exerted on his shoes and back. Calculate the minimum normal force he must exert
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