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A hydrogen atom is in its fourth excited state (n = 5). Using the Bohr theory of the atom, calculate the following.
(a) the radius of the orbit (b) the linear momentum of the electron (c) the angular momentum of the electron (d) the kinetic energy (e) the potential energy (f) the total energy
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
Suppose a monochromic light strikes a grating at normal incidence. The first order diffractions lines appear at the angle 23°, what is the frequency of the light that passes through
Water runs out of the horizontal drainpipe at the rate of 120 liters per minute. It falls 3.20 m to the ground. Assume the water doesn't splash up, what average force does it exert on the ground? (1 liter = 1 kg.)
An electron moves in a circular path perpendicular to the constant magnetic field with a magnitude of 2.00 mT. The angular momentum of the electron about the center of the circle is 5.50 multiplied by 10-25 J•s.
An object is dropped from a height of 55 m above ground level. Determine the final speed at which the object hits the ground
What is an initial velocity of the boulders
A car is driven 175km west and then 55km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
A storage tank at STP contains 18.5kg of butane gas, C4H10, Determine the number of moles of butane gas
A 22-L sample of air at 298K contains 0.10 grams of water vapor. What is the relative humidity of the air
A particle moving with simple harmonic motion has a maximum displacement of +12.0 cm. Calculate time for the particle to move directly to x = -6.00 cm
What is the minimum frequency of light needed to free an electron from a neon nucleus when the electron is in its lowest energy level n=1
A camera has a lens with a focal length of 29.4 cm. When an object is placed 3.95 meters away is being photographed, how far from the film should the lens be placed
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