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a roller coaster at an amusement park starts outon a level track500m long then goes up a 250-m incline at an angle
the muon with mass mmu209me actsas a heavy electron the muon can bind to a proton to form a muonicatom calculate the
a 120 n force with a fixed orientation does work on a particle as the particle moves through displacement d 200i - 400j
two people are pulling a boat through the water as in the figurebelow each exerts a force of 600 n directed at a theta
a parallel-plate capcitor with air dielectric has a plate area of 75cm2 if the capacitor is fully charged by a 300-v
turning a doorknob through 040 of a revolution requires 012 of workwhat is the torque required to turn the
the two plates of a capacitor hold 2200microc and -2200 microc of chargerespectively when the potential difference is
earths atmosphere is constantly bombarded by cosmic ray protons that originate somewhere in space if the protons all
a lifeguard on a beach observes that waveshave a speed of 260 ms and a distance of 250 m between wavecrests what is the
a ball is released from rest and rolls down an incline plane requiring 4 sec to cover a distance of 100cm down the
a proton is in a vacuum near the surface of earth where should a second proton be placed so that the electrostatic
vector1 is 66 uits long and points along the negative x axisvector2 is 85 units long and points at 45 degrees to the
a satellite is in an elliptical orbit at altitudes ranging from310 to 890 km atthe high point its moving at 733 kmshow
a delivery truck travels 18 blocks north 10 blocks east and 16blocks south what is its final displacement from the
a proton moves from a location where v 93 v to a spot wherev -22 va what is the change in the protons kineticenergyb
early skeptics of the idea of a rotating earth said that thefast spin of earth would throw people at the equator
astronauts put their spaceship into orbit about a planet theyfind that the acceleration of gravity at their orbital
if you are watching a football game from the end of a large stadium what size will be the image of the football l03m on
an ordinary glass is filled to the brim with 3250 ml of water at 100degc if the temperaturedecreased to 21degc how much
an optometrist prescribes contact lenses that have a focal length of 500cm a are the lenses converging or diverging b
a jar is slid horizontally across a smooth table if thecoefficient of kinetic friction between the jar and the table
suppose you are looking down at the earth from inside a jetliner flying at a cruising altitude of 10000m the pupil of
1 a book with a mass of 20 kg is held in equilibrium on a boardwith a slope of 60 degrees by a horizontal force what is
the orbiting space shuttle moves around earth well above 99 percentof the atmosphere yet it still accumulates an
two resistors of values 60 and 120 w are connected in parallel this combination in turn is hooked in series with a 40-w