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1. Identify two primitive and two non-primitive cells of the two-dimensional square lattice which are not given in Figure.
2. Draw the two-dimensional lattice whose primitive translation vector of the lattice is 2aix+aly. Show two primitive and two non-primitive unit cells, one of each should be non-rectangular.
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. If radar waves have a wavelength of 3.0 cm.
Suppose that the charge on the electron and proton did not have the same magnitude but instead differed by one part in 10^10. What would be the net charge on a 1.0-kg sample of helium gas
What is the magnitude and direction of the centripetal acceleration due to the earth's rotation at a location near Kansas City at 38 degrees latitude? I believe the answer is 2.66x10^-2 m/s^2, towards the earth's rotation axis. I need to see all ..
The angle between the wall and A (top cable) is 30 degrees, the angle between the wall and B (bottom cable) is 60 degrees. Q is the variable pointing straight down, and P is the red vector pointing up and to the right at 75 lbs, 30 degrees above t..
Two children with masses of 23 and 41 kg are sitting on a balanced seesaw. If the lighter child is sitting 3 m from the center, where is the heavier child sitting
A solenoid is to be constructed that will have a resistance of 5.00 ohms and produce a magnetic field of 0.0400 T at its center when it carries a current of 4.00 A. The solenoid will be made of wire that is 0.500 mm in diameter and have a radius that..
A nickel coin has a mass of about 5.172 g. Each mole (6.02 * 10^23 atoms) has a mass of about 57.98 g. Find the number of atoms in nickel coin. Find the number of electrons in the coin. Each nickel atom has 28 electrons/atom.
A helicopter has blades of length 2.5m, extending out from a central hub and rotating at 4.00 rev/s. If the vertical component of the Earth's magnetic field is 50.0μT, what is the emf induced between the blade tip and the center hub?
question a point on the rim of a 0.71-m-diameter grinding wheel changes speed at a constant rate from 11 ms to 25 ms in
A duck has a mass of 2.1 kg. As the duck paddles, a force of 0.09 N acts on it in a direction due east, Find the magnitude and direction (relative to due east) of the displacement that the duck undergoes in 2.6 s while the forces are acting
A Hydrogen ion isaccelerated through a potential of 106 volts, and thenenters a magnetic field of strength .44 Tesla at an angle of24o, Determine the radiusof the ion's trajectory
An archeological specimen containing 9.2 g of carbon has an activity of 1.6 Bq. How old (in years) is the specimen
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