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(a) What is the energy in joules of an x-ray photon with wavelength 1.95 10-9 m?
J
(b) Convert the energy to electron volts.
eV
A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North. 27.3 seconds after it is released, What is the ratio of the magnitude of E2 to the magnitude of E1
Calculate the electric field within the membrane, if the thickness of the membrane were quadrupled.
An amount of ideal gas is con?ned to a sealed box at one-half atmospheric pressure, i.e., 50.65 kPa. With clever control, the volume of the box is reduced to 1/8 of its original value (without any gas leaking in or out), while the temperture is ke..
If a 200 N force F1 is applied to the piston with the 4 cm diameter, Calculate the magnitude of the force F2 that can be resisted by the piston with the 10 cm diameter? Ignore the weights of the pistons.
Two 50.0 N weights are suspended at opposite ends of a rope that passes over a light, frictionless pulley, find the tension in the rope and chain
A 295 Kg piano slides 4.1 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is .40.
A curve of radius 35 m is banked for a design speed of 64 km/h. If the coefficient of static friction is 0.34 (wet pavement), at what range of speeds can a car safely make curve.
A flight attendant pulls her 71 N flight bag a distance of 322 m along a level airport floor at a constant velocity. The force she exerts is 36 N at an angle of 53° above the horizontal.
A copper ball with a radius of 1.6cm is heated until its diameter has increased by 0.17mm. find the final temperature of the ball.
A 76 g, 40-{rm cm}-long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 10 g ball of clay travelling horizontally at 2.70 m/s hits and sticks to the very bottom tip of the rod. To what maximum angle, measured fro..
why circular orbit of the particle encloses a magnetic flux.
Resolve the position s_b of the image if an object is placed in air on the axis of the rod 16.00 cm to the left of the end of the rod.
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