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The maximum wavelength that an electromagnetic wave can have and still eject electrons from a metal surface is 469 nm. What is the work function W0 of this metal? Express your answer in electron volts.
A particle travels 19 times around a 10-cm radius circle in 36 seconds. What is the average speed (in m/s) of the particle
the record distance in the sport of throwing cowpats is 81.1 m. assuming the initial launch angle was 45deg and
a space station is a hollow cylinder of radius of 440m, that rotates to stimulate gravity by its centripetal acceleration. find the period of the rotation in seconds
a parallel-plate air capacitor has a capacitance of 500pfand a charge of magnitude 0.250uc on each plate. the plates
A parallel-plate capacitor in air has a plate separation of 1.59 cm and a plate area of 25.0 cm2. obtain the charge on the plates before and after immersion
Someone puts an upright 0.450 m radius wreath made out of 30 windings of a string of lights, What is the induced current in the wreath from a N-S wire with a steady DC of 4.00 A2.00 m below the wreath
A motorcycle and a police car are moving toward one another. Thepolice car emits sound with a frequency of 522 Hz and has a speedof 27.0 m/s. What frequency (in Hz) does the motorcyclist hear
an explosion breaks an object initially at rest into two pieces one of which has 2.8 times the mass of the other. if
A 120 V (rms) AC power supply that delivers 0.5 A (rms) current is connected to "side 1" of a transformer. what is the peak voltage drop across the first resistor
a jet cruising at 26400 feet descends 96 miles away from a jet cruising at 31680 feet which is 120 miles from logan
Sewage at a certain pumping station is raised vertically by 5.30 m at the rate of 1 920 000 liters each day. The sewage, of density 1 050 kg/m3, Find the output mechanical power of the lift station
Based on the graph of kinetic energy given (gray curve in the graphing window), sketch a graph of the baseball's gravitational potential energy
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