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two protons at rest and separated by 300 mm are released simultaneously what is the speed of either at the instant when
a proton starts out moving horizontally from a positive plate to a negative plate of equal size and equal magnitude of
a geologist is camped 8000 m from a volcano as it eruptsa how much time elapses before the geologist the sound from the
as in problem 80 an 89-kg man plans to tow a 102000-kg airplane along a runway by pulling horizontally on a cable
you are asked to construct a capacitor having a capacitance near 1 nf and a breakdown potential in excess of 10000 v
an initially uncharged 331-f capacitor and a 811-k resistor are connected in series to a 150-v battery that has
a parallel-plate air-filled capacitor having area 67 cm2 and plate spacing 20 mm is charged to a potential difference
you have a circular swimming pool with a diameter of 360 m if you pump water into the pool at a rate of 187 x 104 cm3s
a jet airplane is in level flight the mass of the airplane is m 8870 kg the plane travels at a constant speed around a
assume that a drop of mercury is an isolated sphere what is the capacitance of a drop that results when 10 drops each
two skaters one with mass 65 kg and the other with mass 60 kg stand on an ice rink holding a pole of length 10 m and
a 100 cart is moving down an inclined plane at 130 ms the cart collides with a stationary object and rebounds with a
one side of the roof of a building slopes up at 430deg a roofer kicks a round flat rock that has been thrown onto the
an object is thrown straight upwards with a speed of 408 ms from the top of a 592 m tall building what is the maximum
the helicopter in the drawing is moving horizontally to the right at a constant velocity the weight of the helicopter
a spherical capacitor contains a charge of 330nc when connected to a potential difference of 250 v if its plates are
a large circular capacitor with a radius of 5 m is separated by 3 mm of aira what is its capacitancefb suppose 9 v is
a 12000 kg car is initially traveling at 200 ms it swerves to avoid running into a baby deer only to run into a parked
a 1200 kg frictionless roller coaster starts from rest at a height of 22 m what is its kinetic energy when it goes over
a woman with a mass of 70 kg climbs a set of stairs that are h 3 m high how much gravitational potential energy does
a car with the mass of 15000 kg initially moving to the right collides with a bus that has a mass of 50000 kg before
a radio-controlled car increases its kinetic energy from 8 j to 10 j over a distance of 5 m what was the average net
a 150m cylindrical rod of diameter 0450m is connected to a power supply that maintains a constant potential difference
how much work is required to bring three protons initially infinitely far apart to a configuration where each proton is
you throw a 250 rock into the air from ground level and observe that when it is 120 high it is traveling upward at 170