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A vacuum cleaner is plugged into a 120.0 V socket and utilizes 3.0 A of current in normal operation when the back emf generated with the electric motor is 76.0 V. Find the coil resistance of the motor.
A coil with inductance0.100 H and resistance 250 Ω is connected in series with a1.00 µF capacitor and a 110 V (rms) 60.0 Hzalternating current source. The capacitive reactance is_______.
A 0.196-µF capacitor is connected to a 246-V rms ac source at 44.5 Hz. determine the reactance of the capacitor
an elastic cord has an unstreched length of 8.1 m and a cross-section of 2 cm2. if the youngs modulus of the material
a 4-cylinder gasoline engine has an efficiency of 28 and delivers 290j of work per cycle per cylinder. when the engine
a charge of 5.85 microc resides at the origin. a what is the flux through any gaussian surface enclosing this charge? b
A block of unknown mass is attached to a spring of spring constant 6.5 N/m and undergoes simple harmonic motion with an amplitude of 10 cm. Calculate the maximum acceleration of the block
Find out the magnitude and direction of the velocity of the heavier fragment relative to the ground just after the explosion. Please provide step-by-step method to solve the problem.
15-kg of aluminum contains .2 kg of water. initially the water and the cup have a common temperature of 18 degrees c.
A cyclotron is sometimes used for carbon dating. Carbon-14 andcarbon-12 ions are obtained from a sample of the material to bedated and are accelerated in the cyclotron. If the cyclotron has amagnetic field of magnitude 2.30 T, what is the differe..
A piano tuner stretches a steel piano wire with a tension of 964N. What is the frequency of its fundamental mode of vibration
A solenoid is wound with a single layer of insulated copper wire (of diameter 2.6 mm), What is the inductance per meter for the solenoid near its center
a positron q e moves at 4.88 x 107 ms in a magnetic field of magnitude 0.410 t. the magnetic force on the positron has
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