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(a) An electron in a hydrogen atom makes a transition from the n = 5 energy stage to the ground state (n=1). What is the frequency of the emitted photon?
f = _________ Hz
(b) Now the electron is excited from its ground state to its first excited state. What is the frequency of the absorbed photon?
f = __________ Hz Give me exact answer please.
A spring loaded ballistic pendulum gun requires an increasing force to load, Calculate the work required to load the gun
How far does the jet travel while it is accelerating and how large is the force that the catapult must exert on the jet?
Over a time interval of 1.92 years, the velocity of a planet orbiting a distant star reverses direction, changing from +19.7 km/s to -19.1 km/s. determine the total change in the planet's velocity
calculate the work done on a charge Q. If an automobile rounds this curve at 30 {rm m/s}, what is the least coefficient of static friction between tires and road needed to prevent skidding.
A kicker punts a football from the very center of the field to the sideline 36 yards downfield. The magnitude of the net displacement of the ball is 46 yards. What is the direction of the net displacement of the ball
Find the magnetic field at P and P' on the axis of a circular coil of radius a = 20.7 cm (see figure below). The coil consists of 10 turns of wire carrying a current of 4.07 A in the direction indicated. (Hint: the magnetic field on the axis of a ..
The acceleration due to gravity on a planet other than the earth has a magnitude of 2.32 m/s2. find the range that the ball would attain on the other planet
The terminals of a 12-V battery are connected to parallel plates. What plate separation would produce an electric field between the plates of 1400 N/C
A student's car stalls right in front of a speed bump while she is on her way to physics class. what is the size of the force pulling the car in lbs
Block A weighs 19.9 lb and is moving toward the left with a velocity of 4 ft/s just before it is struck by the bullet B from a caliber 50 machine gun. The coefficient of kinetic friction between A and the plane is 0.25. The bullet weighs 0.10 lb a..
A viscous fluid is flowing through a small tube at a rate of 2.00 × 10-4 m3/s. what is the rate of flow of the fluid
An R = 46.1 ? resistor is connected to a C = 43.0 ?F capacitor and to a ?VRMS = 102 V, and f = 108 Hz voltage source. Calculate the power factor when the capacitor is replaced with an L = 0.358 H inductor
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