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If you body is emitting infrared radiation of wavelength 9.4 x 10^(-6)m, what is the energy of the released photons?
A hydrogen atom initially in the n =3 level emits a photon and ends up in the ground state.
a) What is the energy of the emitted photon?
b) If this atom then absorbs a second photon and returns to the n =3,state what must the energy of this photon be?
The amount of carbon -14 in an ancient wooden bowl is found to be one-half that in a new piece of wood. How old is the bowl?
A stone held just beneath the surface of a swimming pool isreleased and sinks to the bottom at a constant speed of 0.48 m/s.What is the apparent speed of the stone, as viewed from directlyabove by an observer who is in air?
A person walks 25.0 degrees north of east for 3.1 km. How far would another person walk due north and due east to arrive at the same location.
a high-performance dragster with a mass of m 1172 kg can accelerate at a rate of a 31.5 ms2part a write an expression
An FM radio station broadcasts at a frequency of 90 MHz. What inductance must be paired with a 6.0 pF capacitor to build a receiver circuit for this station?
John's mass is 91 kilogram, and Barbara's is 67 kilogram. He is standing on the x axis at xJ = +9.80 m, Determine how far and in which direction does their center of mass move as a result of the switch
a river has a steady speed of 0.500 ms. a student swims upstream a distance of 1.00 km and swims back to the starting
Suppose that you had used an argon laser (wavelength=488 nm) instead of the HeNe laser. Calculate the width of the central maximum for the 0.04 mm slit assuming all other dimensions remain the same.
A block of wood weighing 2N slides down a 37^0 inclined plane starting from rest and reaching 2 m/s. What is the kinetic coefficient of friction between the block and slide
Luke and Leia are twins, and Luke immediately leaves after birth on a spaceship traveling at 65% of the speed of light, How old is Luke when he returns
A material is formed into a long rod with a square cross-section 0.50 cm on each side. What is the resistivity of the material
The Gulf Stream off the east coast of the United States can flow at a rapid 3.4m/s to the north. In what direction with respect to the water should the ship sail
a bolt comes loose from underneath an elevator that is moving upward at a speed of 4.5 ms. the bolt reaches the bottom
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