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a) How many transitions involving the hydrogen energy levels (solid lines) shown in the diagram correspond to photons of visible light?
b) How many transitions involving the hydrogen energy levels shown correspond to photons of infrared light?
c) How many transitions involving the hydrogen energy levels shown correspond to photons of ultraviolet light?
in a pacemaker used by a heart patient a capacitor with a capacitance of 29-microf is charged to 2.0 v and then
A spherical mirror is polished on both sides. when you use aconvex mirror the magnification is +1/6. What is the magnificationwhen used as a concave mirror the object remaining the samedistance form the mirror?
A lithium atom, mass 1.17 x 10-26 kg, is vibrating with simple harmonic motion in a crystal lattice, where the force constant is 71.0 N/m. Write the equation relating the energy levels of the harmonic oscillator to the quantities given.
a charge of -5.9 micro-coulombs is placed at x 0 y 0. a charge of -17.9 micro-coulombs is placed at x 0 y 36 cm.
the achilles tendon which connects the calf muscles to the heel is the thickest and strongest tendon in the body. in
Find the smallest particle size (density 2.65 grams per cubic cm) that will be removed in a horizontal grit chamber 10 meters long and 1.0 meter deep if the flow rate is 1000 cubic meters per hour. Suppose temperature is 25 ºC.
A heat engine operates in a Carnot cycle between reservoirs oftemperatures 1000 K and 400 K. What is the work output per cycle
consider a uranium nucleus to be a sphere of radius r 7.4 x 10-15 m with a charge of 92e distributed uniformly
A 0.42 kg ball is dropped from rest at a point 1.30m above the floor. The ball rebounds straight upward to a height of 0.580 m. What are the magnitude and direction of impulse of the net force applied to the ball during the collision with the floo..
A missile of mass 1.20 102 kg is fired from a plane of mass 4.85 103 kg initially moving at a speed of 3.35 102 m/s. what is the final velocity of the plane?
a large spool in an electricians workshop has 85 m of insulation-coated wire coiled around it. when the electrician
a large pendulum with a 200 lb gold-plated bob 12 inches in diameter is on display in the lobby of the united nations
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