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From a cliff 9.5 above a river, a young women of mass m = 45kg, jumps from rest, straight down into the water. At the instant she strikes the water, what is her de Broglie wave length?
An atom is cooled to zero K, and confined in a harmonic potential V (x) = 1 m?2x2. At 2t=0, the potential is switched off, such that V (x) = 0
An aircraft weighing 971 N is accelerated at 9.1 m/s/s for 5 seconds, at which time the aircraft launches. What is the force required to launch the aircraft
A piece of string 5.30 m long has a mass of 14 g. What must the tension in the string be to make the wavelength of a 128 Hz wave 120 cm.
What is the electric potential energy of the electron as it is at midpoint and at 14cm from 5 charge.
A 1830 kg car traveling at 12.9 m/s collides with a 2980 kg car that is initally at rest at a stoplight. find the coefficient of kinetic friction between the cars and the road
A 120 V space heater has two power settings. The equivalent resistance at the two settings are 19 ? and a 37 ?, After making a guess, determine the power at the low setting
Adjacent antinodes of a standing waves on the string are 15.2 cm apart. A particle at an antinode oscillates in simple harmonic motion with amplitude 0.850 cm and period 0.0750 s. The string lies along the x axis and is fixed at x = 0.
Two 10-cm-diameter charged rings face each other, 18.0cm apart. Both rings are charged to + 50.0nC . What is the electric field strength at the center of the left ring
Ideally, when a thermometer is used to measure the temperature of an object, the temperature of the object itself should not change. What was the temperature of the water before the insertion of the thermometer
What would the average wind speed (in m/s) for this month be at a height of 80 m if this site experiences a wind shear condition which matches a logarithmic law with a surface roughness of 0.1 m? f. Based on the roughness noted in e) above, how wo..
A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. Calculate the angular acceleration of the pottery wheel
Note down that since each oscillator is attached to two "springs", and each "spring" is half the length of the interatomic bond, the effective interatomic spring stiffness for one of these oscillators is times estimated value given above.
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