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For an electron in a molecular "box" of length 1.2 nm:
a. Calculate the zero-point energy (ZPE).
b. Calculate the wavelength of light needed to excite the electron from n=1 to n=2
A spacecraft is in orbit around a planet. The radius of the orbit is 2.9 times the radius of the planet (which is R = 71474 km). What is the period of the spacecraft's orbit
Which container has more gas molecules?
You have a set of converging lenses with focal lengths 1.05 cm, 14.5 cm, 48.0 cm, and 74.5 cm. find the distance between the objective and eyepiece
A solid spherical target which weighs 10 kg and has a radius of 25 cm rests on a frictionless table. What is the angular speed of the sphere after the collision
the sketch shows a conical pendulum. the ball swings in a circular path because of the string attached at the top. the
A strong weightless rope has a mass m hanging from the middle of it, as shown. The tension force on each rope is 25 N, and the rope droops at an angle of 20.0°. How much mass is hanging from the rope?
air is contained in a vertical piston-cylinder assembly by a piston of mass 50 kg and having a face area of 0.01 m2.
A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, compute the linear momentum of the electron
a 6.37-kg box is sliding across the horizontal floor of an elevator. the coefficient of kinetic friction between the
Four (and only four) full spectral orders can be seen on either side of the central maximum, find the maximum number of slits per cm for the grating
Two stretched cables both experience the same stress. The first cable has a radius of 3.1 times 10-3 m, and is subject to a stretching force of 230 N. The radius of the second cable is 4.6 times 10-3 m. Determine the stretching force on the second ca..
Find the magnetic field generated 5.0 cm above a single 2.5 cm long segment of copper wire carrying a current of 3.0 A. how much stronger is the actual field from the whole wire at this point
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