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The electric field at a distance of 2 m from an infinite line charge of charge density 4 nC/m is
Two masses mA = 2.8 kg and mB = 6.2 kg are on inclines and are connected together by a string as shown in the figure.
Ignore masses of the frictionless pulley and the cord.
The coefficient of kinetic friction between each mass and its incline is μk=0.34. If mA moves up, and mB moves down, determine their acceleration.
Two particles come towards each other with speed 0.9c with respect to laboratory. Calculate their relative speeds.
A bus initially with a speed of 25 m/s slows down with an acceleration of -3 m/s2. How far does it travel before coming to a complete stop?
How much work is needed to decreases the distance between a +15 µC charge
and a -20 µC charge from 1 m to 0.25 m?
Hawkeye pulls a quiver attached to his bow back 61 cm by exerting a force that increases uniformly with distance from 0 to 257 N. How much work does Hawkeye do on the string?
If A, B and C are Hermitian operators, determine if the following combinations are Hermitian: 1 A + B 2 1 2i [A, B] 3 (ABC − CBA) 4 A 2 + B 2 + C 2 5 (A + iB)
A nucleus has a radius of 4 Fermis. Use the uncertainty principle to estimate the kinetic energy for a neutron localized inside the nucleus. Do the same for an electron.
A nucleus has a radius of 4 Fermis. Use the uncertainty principle to estimate the kinetic energy for a neutron localized inside the nucleus. Do the same for an electron.
Estimate the Hydrogen Ground State Energy
#339914 on Dec 2023