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A conducting rod AB sliding with constant speed v=2m/s on conducting rails in a uniform magnetic field with B= 0.15T. What is the current in the rod
A step-down transformer is used for recharging the batteries of portable devices. Find the power delivered to the CD player
A 44.0-? resistor is connected in series with a 68.0-µF capacitor and a generator having a maximum voltage of 1.20E2 V, find the capacitive reactance of the circuit
A 94.07 cm-long steel string with a linear density of 1.02 g/m is under 273.01 N tension. find the wavelength of the sound wave that reaches your ear
A 50 foot garden hose isfilled with sea water. What is the resistance from one end to the other, what is the current density in the hose
A solid spherical ball of mass 1.21 kg and radius 0.07 m rolls along a smooth, level surface with a speed of 2 m/s. How far up the plane does the ball go
An RLC circuit consists of a 170 resistor, a 21.0 µF capacitor, and a 510 mH inductor, compute the phase angle between the current and the applied voltage
The output voltage of an AC generator is given by ?v = 107 V sin (45?t). Find average power delivered to the inductor
A ten pound car wheel has a moment of inertia of 0.38 kg m2. What is the wheel's rotational kinetic energy
An ideal 0.15-H inductor and a capacitor are connected in series with an ideal 60-Hz generator. Find the capacitance and the rms current in the circuit
An air-track glider attached to a spring oscillates between the 11.4 cm mark and the 57.27 cm mark on the track. What is the maximum speed of the glider in cm/s
An object of mass 263.25285 g executes SHM with an amplitude of 14.906379 cm and a period 29.11989 s. Find the force acting on the object
On a banked race track, the smallest circular path on which cars can move has a radius of 102 m, while the largest has a radius 157 m, Find the smallest and largest speed the cars can remove without
The motion detector used in a physics lab sends and receives 49.55 kHz ultrasonic pulses. find the wavelength of the waves emitted by the motion detector
Spark plugs should be tightened to a specified torque of 9.28Nm. You have a wrench that is 0.39 m long, What force must you exert on the wrench
A ten pound car wheel has a moment of inertia of 0.52 kg m2. How much torque is required to stop the wheel in 43.21 s?
a radar pulse travels from the earth to the moon and back in 2.6 seconds. Calculate the distance from the earth to the moon
A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, Find the speed of the chair
A microphone is moving in air towards a stationary source of sound. The detected frequency is 106 Hz greater than the emitted frequency. What is the speed of sound in the unkown liquid
A 1400 kg car carrying four 96 kg people travels over a "washboard" dirt road with corrugations 4.5 m apart. by how much does the car body rise on its suspension
The amplitude of a lightly damped oscillator decreases by 1.7% during each cycle. What percentage of the mechanical energy of the oscillator is lost
If a particular metal surface is hit by a photon of 4.3eV, and electron is ejected with the maximum velocity of 563,050 m/s. What is the work function of the metal, give answer in eV
A sodium surface, which has a work function of 2.46eV is illuminated with a wavelength = 300nm light. What is the deBroglie wavelength of these electrons
A Sodium surface, which has a work function ? of 2.46 eV is illuminated with ? = 300nm light. Find the threshold frequency for Sodium
write an expression for the induced emf in terms of the magnetic field, the legth of the rod, the maximum velocity of the rod, the displacement of the rod, and the maximum displacement of the rod