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Potential energy in a two-dimensional crystal **
Use a computer to calculate numerically the potential energy, per ion, for an infinite two-dimensional square ionic crystal with sepa- ration a; that is, a plane of equally spaced charges of magnitude e and alternating sign (as with a checkerboard).
You take the elevator to the roof of a midtown skyscraper that is 100 meters high. How far from the side of the buliding will it land
An electromagnetic wave is propagating towards the west. At a certain moment the direction of the magnetic field vector associated with this wave points vertically up. The direction of the electric field vector of this wave options:
An Atwoods machine is made with masses M1=100g, M2= 120g, and pulley mass of 100g. What is the percent error in acceleration
In a study of proteins mediating cell membrane transport,microbiologists measure current versus time through the cellmembranes of oocytes (nearly mature egg cells) taken from theAfrican clawed frog,
two events occur in an inertial system k at the same time but 7 km apart. what is the time difference measured in a
question a backpacker carries an empty soft-plastic water container into the mountains. the initial volume at 1.0 atm
A starship voyages to a distant planet 10 ly away. The explorers stay 4.00yr , return at the same speed, What is the speed of the starship
A 75 kg man standing on a scale in an elevator notes that as the elevator rises the scale reads 825N. What is the acceleration of the elevator
The heaviest and lightest strings on a certain violin have linear densities of 3.0 and 0.29 g/m. What is the ratio of the diameter of the heaviest string to that of the lightest string, assuming that the strings are of the same material?
A 1225 kg automobile starts from rest on a horizontal road and gains a speed of 83 km/h in 38 s. What is the average power required of the car during the 38 s interval
n a downhill skiing competition, a 57.0-kg skier goes through the first 25.0 m of a curved path in 3.10 s. What is the average acceleration of the skier
The index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red), whereas its index of refraction is 1.530, what is the angle of refraction for each wavelength
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