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the graph shows how the force component fcosalong the displacement varies with the magnitude s of thedisplacement find
when a light bulb is connected across the terminals of a battery the battery delivers 24 w of power to the bulb a
a strong electromagnet produces a uniform magneticfield of 160 t over a cross-sectional area of 0200 m2we place a coil
why does a tile or wooden floor feel colder ahtn a carpeted floor when both are at the same temp assume both below room
two speakers are both emitting sounds the first with an intensitylevel of 1 x 10-6 wm2 and the second with anintensity
a particle of mass m slides down an inclined plane under the influence of gravity a if the motion is resisted by a
a copper wire of radius a 0331 mm has an aluminum jacket of outer radius b 0459 mm there is a currenti 223 a in the
a person notices a mild shock if the current along a path throughthe thumb and index finger exceeds 72microa compare
a 170 km long high-voltage transmissionline 20 cm in diameter carries a steady current of 1040 a if the conductor is
an electron traveling at 812 ms enters a57 t magnetic field the angle betweenthe velocity and the field is 83o find the
a battery with an emf of 15 v and a 12 omega resistorare the only two components in a circuit you measure the current
a block of mass 250 kg is pushed 220 m along a frictionless horizontal table by a constant 160 n force directed 250
coherent light that contains two wavelengths 665 nm red and 575 nm yellow passesthrough two narrow slits separated by
the magnetic flux passing through a single loop in a transformerchanges at a rate of 3 wbs the primarycoil has 90 loops
a 1200 kg automobile crashes into a brick wall collapsing thefront end 15 meters if the averge retarding force applied
a pendulum consists of a 38 kg stone swinging on a 36 m string ofnegligible mass the stone has a speed of 94 ms when it
a hydraulic lift is used to jack a 1120kg car 10 cm off the floor the diameterof the output piston is 18 cm and the
a airplane is flying at a velocity of 240ms and a angle of 30degrees when the altitude of the plane is 24 km a flare is
a large fake cookie sliding on a horizontal surface is attached toone end of a horizontal spring with springconstant k
a worker is to paint the walls of a square room 790 ft high and 180 ftalong each side what surface area in square
a circular coil radius 040 m has 160 turns and is in a uniformmagnetic field if the orientation of the coil is varied
a mass oscillates up and down on a vertical spring with anamplitude of 6 cm and a period of 2 s what total distance
a spring hanging from the ceiling has an unstretched length of 80cm a mass is then suspended at rest from the spring
a copper wire of length 25 cm is in a magnetic field of 020 t ifit has a mass of 10 g what is the minimum current
there is a current i flowing in a clockwise direction in a squareloop of wire that is in the plane of the paper if the