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Calculate the de Broglie wavelength of a 4.7 MeV ? particle emitted from an atomic nucleus whose diameter is approximately 1.4 multiplied by 10-14 m. Calculate its minimum kinetic energy according to the uncertainty principle. Have calculated the de Broglie wavelength to be 6.61fm.
Office Window An office window has dimensions 3.9 m by 2.2 m. As a result of the passage of a storm, the outside air pressure drops to 0.96 atm, but inside the pressure is held at 1.0 atm. What net force pushes out on the window?
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed, Determine the magnitude of the electron's centripetal acceleration
A catcher catches a 145{\rm g} baseball traveling horizontally at 32.0{\rm m}/{\rm s}. what average force did the ball exert on the catcher
A step-down transformer (turns ratio = 1:8) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train. What is the current in the primary coil
An iron casting containing a number of cavities weighs 16967.7 N in air and 13045.8 N in water. What is the total volume of all the cavities in the casting
A tank contains 10.3 g of chlorine gas (Cl2) at a temperature of 79 °C and an absolute pressure of 5.16 105 Pa. How many grams of chlorine gas have leaked out of the tank
An Olympic skier moving at 20m/s down a 30o slope encounters a region of wet snow and slides 145 m before coming to a stop. What is the coefficient of friction between skis and snow if the combined mass of the skier and skis is 55 Kgm.
A cable is used to raise a 29kg urn from an underwater archeological site. There is a 21 N drag force from the water as the urn is raised at a constant speed.
A 5 kg block is dragged on a horizontal surface in a circular path of radius 2 m. what is the work done by friction during one turn
Problem 12.30: Singing in the shower. We all sound like great singers in the shower, due to standing waves, What are the wavelengths of the first two overtones for this shower
A Doppler ultrasound unit is used to measure the motion of blood in a patientâ€TMs artery. What is the maximum speed of the blood in the artery
A potential difference of 90 mV exists between the inner and outer surfaces of a 7.5 nm thick cell membrane. What is the electric field inside the cell membrane and inside the actual cell. Explain
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