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a series rlc circuit has a peak voltage of 154 v and a peak current of 5 a if the current lags the voltage by 45
the voltage drop along a 300m segment of a power line made from copper wire a very good conductor is 12 v while
a transformer has 390 turns in the primary coil and 230 in the secondary coil what kind of transformer is this
an r 678 resistor is connected to a c 478 f capacitor and to a vrms 117 v and f 112 hz voltage sourcecalculate the
a wire and a 10 ohm resistor are used to form a circuit in the shape of a square 20cm by 20cm a uniform magnetic
a particle with a charge of 84 microc and a speed of 45 ms enters a uniform magnetic field whose magnitude is 032 t for
an unknown material has a normal meltingfreezing point of -263deg c and the liquid phase has a specific heat capacity
a hammer taps on the end of a 420 m-long metal bar at room temperature a microphone at the other end of the bar picks
an ospreys call is a distinct whistle at 2200hz an osprey calls while diving at you to drive you away from her nest you
a window air conditioner unit absorbs 985 104 j of heat per minute from the room being cooled and in the same time
a series rc circuit which is made from a battery a switch a resistor and a 30-microf capacitor has a time constant of
the generator in an ac inductor circuit creates a maximum potential difference across the 274times103 h inductor of 243
in an experiment to measure the index of refraction of human skin it was found that if a beam of unpolarized light was
a heater and a motor are powered in parallel from the same 220v power supply the motor draws 2a and the heater draws
a sound wave frequency 256hz is propagating in air at 343ms how far apart are two points on the wave that differ in
at a given instant in time a traveling em wave is noted to have its maximum magnetic field pointing west and its
a grinding wheel of radius 0280 m rotating on a frictionless axle is brought to rest by applying a constant friction
an air-track glider attached to a spring oscillates between the 120 cm mark and the 550 cm mark on the track the glider
a 0900 kg block is attached to a spring with spring constant 18 nm while the block is sitting at rest a student hits it
a 798 kg satellite is in a circular orbit about the earth at a height above the earth equal to the earths mean radiusa
a 20 cm-long solenoid carrying a current of 8ma is oriented with its axis parallel to earths magnetic field whose
when a charge with q2e moves under the influence of the electric force and an external force through a potential
a point charge of magnitude q is at the center of a cube with sides of length la what is the electric flux through each
a person on a safari wants to take a photograph of a hippopotamus from a distance of 788 m the animal is 490 m long and
kim says that she was less than 10 ft away from the president when she took a picture of him with her 53-mm focal