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problem to conserve energy a certain rooms temperature is kept at 600degf in the winter and 800degf in the summera what
problem if one vibration has 48 times the energy of a second but their frequencies and masses are the same what is the
question a current of 793 a in a long straight wire produces a magnetic field of 775 microt at a certain distance from
problem a wheel starts from rest and reaches an angular speed of 60 rads while turning through 20 revolutions1 what is
question the pole pieces of one magnet are 45 cm x 45 cm in cross section the magnetic field between them is uniform
problem an insect 11mm tall is placed 09 mm beyond the focal point of the objective lens of a compound microscope the
question the microwaves in a microwave oven are produced in a special tube called a magnetron the electrons orbit the
solve the given questionsquestion i what is the tangential acceleration of a bug on the rim of an 110-in-diameter disk
problem derive the wave equation for the water wave in shallow pool of water of depth h and then find the speed of the
solve the given problemsproblem i what is the coefficient of performance of an ideal heat pump that extracts heat from
solve the given problem in detailproblem the starter motor of a car engine draws a current of 200a from the battery the
question a circular coil of wire has a radius of approximately 5 cm it contains 200 turns and lies with its plane
problem a car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the
problem you are examining a flea with a converging lens that has a focal length of 350 cmpart a if the image of the
question a 31 cm diameter coil consists of 21 turns of cylindrical copper wire 3 mm in diameter a uniform magnetic
solve the following questionquestion a student attempts to levitate a piece of current-carrying wire using the earths
problem calculate how much current is required to make the field at the center of a current loop comparable to the
question if wind blows at 44 ms over a house what is the net force on the roof if its area is 190 m2 and is flat at
question a metal wire of resistance r is cut into five equal pieces that are then placed together side by side to form
problem during a lunar eclipse a picture of the moon which has a diameter of 348 x 106 m and is 386 x 108 m from the
question consider two long straight parallel wires each carrying a current i 40 a with the currents in the same
calculate the resistance for given problemproblem three resistors 50 ohm 100 ohm 200 ohm are connected in series in a
problem a current of 631 a in a solenoid of length 134 cm creates a 0357 t magnetic field at the center of the
question a properly exposed photograph is taken at f11 and 1100s what lens opening is required if the shutter speed is
question a conductor of radius r length l and resistivity p and resistance r it is melted down and formed into a new