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Find the de Broglie wavelength of electrons with kinetic energies of 30 eV. Answer all in pm. Find the de Broglie wavelength of electrons with kinetic energies of 5.0 keV. Find the de Broglie wavelength of electrons with kinetic energies of 20 keV.
A 35 N boy pushes down on the ground with a force of 10 N perpendicular to the surface of the ground. What is the magnitude of the force of the ground on the boy
a plastic bad is filled with nitrogen at atmospheric pressure and 18 degrees Celciuss. Assume that the mass of the bad is negligible and take the temperature of the outside air to be 0 degree Celcius, How large a volume of nitrogen (in M^3) is requ..
A spring stretches 4.1 cm when a 11 g mass is hung from it. If a total mass of 25 g attached to this spring oscillates in simple harmonic motion,how to calculate the period of motion.
A person wearing a seat belt can withstand an acceleration of -3.0 x 10^2 m/s^2. Explain how thick should barriers be to safely stop a car that hits a barrier at 110 km/h?
assume you are standing on a train, both feet together, facing a window. The front of the train is to your left. The train starts moving forward.
Two 20 microfarad capacitors are wired in parallel with each other in series with a single 5 ohm resistor. What is the maximum energy stored in the capacitor
A constant horizontal force a pushes a kg FedEx package across a frictionless floor on which an xy coordinate system has been drawn. package's x and y velocity components versus time t.
An 82 kg man drops from rest on the diving board 3 m above the surface of the water and comes to rest 0.55 s after reaching the water. What force does the water exert on him.
A toy train is pushed forward and released at = 2.0 with a speed of 1.5 . It rolls at a steady speed for 2.8 , then one wheel begins to stick. The train comes to a stop 5.6 from the point at which it was released. Elucidate the train's accelera..
33g of copper pellets are removed from a 300?C oven and immediately dropped into 100mL of water, What will the new water temperature be
Standing on the surface of a small spherical moon whose radius is 6.85·104 m, What maximum height above the surface of the moon will the rock reach
A spring with spring constant 15N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. What is its the mass of the ball
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