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An oversimpliefied model of the hydrogen atom has the electron orbiting the nucleus's proton at a distance of approximately 5.29x10^-11 m. If the electron's speed is about 2.2x10^6 m/s then
A) how much force is needed to keep the electron in a circular orbit?
B) Using the results from problem 3-12, compare the requred force with the gravitational force of attraction. What does this result imply?
A hydrogen atom that is initially at rest absorbs a photon with an energy of 21 eV. What is the momentum of the atom
Light of wavelength 670nm falls on two slits and produces an interference pattern in which the third-order bright red fringe is 49mm, What is the separation of the two slits
An unstable elementary particle comes in two varieties, one with positive and one with negative electric charge, What is the difference (R+)-(R-) between the two rates, with its error
The wheel of a car has a radius of .350 m. the engine of the car applies a torque of 295 Nxm to this wheel that does not slip against the road surface.
The terminals of a generator are connected to inductors. Inductor 1 is equal to 30.0 mH and the second inductor has a value of 60.0 mH. What is the value of the third inductor
Calculate the energy of the electron in the ground state of double ionized lithium, which has an atomic number Z = 3
The acceleration as a function of time of a mass-spring system is given by a=(0.70m/s^2)sin[(3rad/s)t]. a)If the spring constant is 20N/m, what is the amplitude? b)What is the initial velocity? c)what is the mass of object?
A baggage handler throws a 20kg suitcase along the floor of an airplane luggage compartment with a speed of 1.2 m/s. What is the suitcase's coefficient of kinetic friction on the floor
A 3.4 kg piece of aluminum at 28°C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20°C)
A hiker's trip consists of three segments. Path A is 7.00 km long heading 60.00 degrees north of east. Path B is 6.00 km long in the direction due east. Path C is 5.00 km long heading 315 degrees counter clockwise from east. Graphically add hiker's d..
A violin string of length 35 cm and mass 1.1 g has a frequency of 478 Hz when it is vibrating in its fundamental mode. What is the wavelength of the standing wave on the string
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. determine the maximum allowed braking force
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