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Two 125 W (122 V) lightbulbs are wired in series, then the combination is connected to a 122 V supply. How much power is dissipated by each bulb?
A 72-kg base runner begins his slide into second base when he is moving at a speed of 3.9 m/s. How far does he slide
A daredevil is shot out of a cannon at 43 degrees to the horizontal with an initial seed of 25m/s. A net is positioned at a horizontal distance of of 50m from the cannon from which it is shot. At what height above cannon should the net be placed i..
A 0.14 kg ball is placed in a shallow wedge with an opening angle of 126°. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless.
A loudspeaker of mass 19.0 kg is suspended a distance of = 1.60 m below ceiling by two cables that make equal angles with the ceiling. Each cable has a length of = 3.30m . What is the tension in each of the cables.
A 0.170 kg tumour is being irradiated by a radioactive source. Each decay of the radioactive source produces a particle with an energy of 0.450 MeV. find the activity of the radioactive source
A tetherball leans against the smooth, frictionless post to which it is attached, What is the force the pole exerts on the ball
A very powerful vacuum cleaner has a hose 2.61 cm in diameter. With no nozzle on the hose, what is the weight of the heaviest brick that the cleaner can lift
The hoist has a 5-year life and an estimated salvage value of $1,394. Installation costs were $2,841, and freight charges were $852. Carleton uses straight-line depreciation.
compute the coefficient of kinetic friction between block A and the tabletop.
The magnetic field in a microwave traveling through vacuum has amplitude 4.00 X 10^-11T, Find the amplitude and frequency of the elctric field
A 10-kg box is stationary on the ground and pushed by a downward force of 30 N. Calculate the supporting normal force acted on the box from the ground
In a lightning bolt, a large amount of charge flows during a time of 2.6 x 10-3 s. How much charged has flowed during the lightning bolt
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