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What is the minimum potential difference that must be applied to an X-ray tube to knock a K-shell electron completely out of an atom in a copper (Z = 29) target? Use the Bohr model as needed.
A primitive diving bell consists of a cylindrical tank with one end open and one end closed. The tank is lowered into a freshwater lake, open end downward. Water rises into the tank, compressing the trapped air, whose temperature remains constant ..
What is the surface temperature of Betelgeuse, a red giant star in the constellation of Orion, which radiates with a peak wavelength of about 970 nm
Charges q1=+2.20 × 10-5 C and q2=-2.40 × 10-4 C are placed at rest 66.5 cm apart. How much work must be done by an outside agent to move these charges
A capacitor has a surface charge density of 5 micro-coulombs/m2. What is the amount of the electrical force on the point charge
What is x and y coordinates of the shell
A steel rivet 1.50 cm long and 1.5 mm radius has one end attached to a wall. If the other end is subjected to a shearing force of 6.0 × 104 N, what is the downward deflection
Treating the pulley as a uniform disk, determine the speeds of the two objects as they pass each other.
3 amperes of current flow through a wire. What net charge flows past a point in the wire each second
A train is traveling up a 5.0 degrees incline at a speed of 2.65 m/s when the last car breaks free and begins to coast without friction. How far did the last car travel before momentarily coming to rest
michael hits a 45.9 g golf ball traveling 56.0 m/s at an angle 60 degree north of east and splits into three pieces. what is the velocity of the third piece
Unpoloarized light is passed through a set of n polarizers. The first polarizer is arranged with the polarizing slits aligned vertically, and the last polarizer of the set is arranged so its slits are aligned horizontally. Each polarizer in betwee..
A 15 kg block is accelerated at 2.0 m/s2 up a frictionless plane inclined at 5.0° to the horizontal, with the speed increasing from 10 m/s to 24 m/s. What is the change in the block's mechanical energy
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