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The atomic weight of carbon 12 is 12, and that of magnesium 24 is 23.985. What fraction of the star's mass can be converted into energy via this fusion process?
Calculate the energy of H2 molecule where nx = ny = nz - 10. By comparing this energy to kT with T = 300K, determine whether a classical or quantum mechanical description can be used.
A +25 µC point charge is placed 42 cm from an identical +25 µC point charge. How much work would be required by an external force to move a+0.61 µC test charge from a point midway
A metal sphere of radius r0 = 0.23 m carries a charge Q = 0.70 µC. Equipotential surfaces are to be drawn for 100 V intervals outside the sphere. Determine the radius r of the following equipo
A 32 cm diameter conducting sphere is charged to 300 V relative to V = 0 at r = infinity . (a) What is the surface charge density ??
A small metal ball with a mass of 5.95 g and a charge of 5.31 mC is located at a distance of 0.63 m above the ground in an electric field of 21.1 N/C directed to the east. The ball is then released
A conducting sphere of radius 2.00 cm (0.020 m) has a charge of 1 micro C deposited on it. What is the magnitude of the electric field in N/C just outside the surface of the conducting sphere?
A meter stick, tilted at 20 degrees from the horizontal, is moving by earth. The horizontal component of the meter stick is measured to be 82 cm. Determine the speed v of the meter stick.
Assuming that minimal water is lost due to evaporation and the total volume remains constant, what is the current rate at which water enters and leaves the San Vicente reservoir?
A giant star has a radius of 200 Rsun, with core mass 0.6 Msun surrounded by an extended envelope of mass 0.2 Msun. a.) Estimate the gravitational potential energy of the envelope.
Two resistors A and B are connected in series to a 9.0 V battery; the voltage across resistor A is 6.0 V. When A and B are connected in parallel across a 9.0 V battery, the current through B is 3.0
For a particle in a cubical box and in its ground state, given an accurate estimate of the probability for finding the particle in a cube at the center of the box and occupying 10^-6 of the total vo
A particle of mass m is located in a 1-D box with infinite walls at x=0 and x=L. For the fourth energy level (n=4), set up the integral necessary to determine the probability of finding the particle
For an electron in a molecular "box" of length 1.2 nm: a. Calculate the zero-point energy (ZPE).
Calculate difference in energy between the first excited level and the ground level.
For a particle in a box of length L: a. What is the probability of finding the particle in the region 0<x<L/3 when n=3
Find an expression for the allowed wavelengths of deBroglie waves that fit in a box of length L. What kinetic energies are associated with these wavelengths?
Where would the spectral lines be found for the two lowest energy excitations from the ground state? (answer in cm-1).
A spherical ballon with radius 1.0m consists of an aluminum coated Mylar. How many electrons must be deposited on the aluminum layer such that the resulting electric pressure is equal to one atmosph
Two point charges of 30 nC and -40 nC are held fixed on an x axis, at the origin and at x = 76 cm, respectively. A particle with a charge of 42 µC is released from rest at x = 28 cm. If the in
The potential energy for the force between two atoms in a diatomic molecule has the approximate form: V(x) = (-a/x6) + (b/x12) where a and b are positive constants.
Viewing the electron as a satellite orbiting the proton in the electrostatic potential, calculate the speed of the electron in its orbit.
what output voltage (measured to ground) and equivalent output resistance result? If the resistors used are not ideal but have a +5% manufacturing tolerance, what are the extreme output voltages and
A ball is thrown directly downward with an initial speed of 6.95 m/s, from a height of 28.5 m. After what interval does the ball strike the ground?