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Light with a frequency of 2 X 10^15 Hz shines on a copper surface (=4.70 eV). What is the maximum kinetic energy of the photoelectrons?
A catcher stops a ball traveling at 28.0 m/s in a distance of 55.30 cm and feels a force of 313 N against his glove. What is the mass of the ball.
A 300kg piano slides 4.10 m down a 30° 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 0.4. Determine the force exerted by the man.
A 2.70-cm-high object is situated 18.5 cm in front of a concave mirror that has a radius of curvature of 8.06 cm. Calculate the location and the height of the image
When responding to sound, the human eardrum vibrates about its equilibrium position. What is the maximum acceleration of the eardrum
How much work is done by the horizontal force F_p = 150 N on the 18 kg block of the figure when the force pushes the block 5.5 m up along the 32 degree frictionless incline
The lower weight is a light bag filled with sand. Assume a pin pokes a hole in the bag and the sand slowly leaks out while the puck is revolving. What would be the puck's speed after all of the sand is gone.
A propeller is modeled as five identical uniform rods extending radially from its axis. what is its rotational kinetic energy
What is the acceleration of two falling sky divers.
An ion accelerated through a potential difference of 240.0 V has its potential energy decreased by potential energy of 7.68*10^-17 J
An elevator can lift a 185 N aircraft a distance of 36 meters in 11 s. What is the power output of the elevator
When monochromatic light shines perpendicularly on a soap film (n = 1.33) with air on each side, What is the vacuum wavelength of the light in nm
which the tortoise wins in a photo finish? suppose that, when moving, both animals move steadily at their respective maximum speeds.
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