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describe the change in flux through and the induced current in a loop of wire rotated in a uniform magnetic field
in a series LRC circuit the frequency at which the circuit is at resonance is f0, if you double the resistance, the inductance, what is the new resonance frequency
A transverse periodic wave described by the expression y= 5sin(pi*x/3 - 30*pi*t) is established on a string. What is the length in meters of the string
A 7.7 uf capacitor and a 1250 ohm resistor are connected in series to a generator operating at 50 Hz and producing an rms voltage of 208 V
A steel ball with a mass of 50.0g is dropped from a height of 2.30m onto a horizontal steel slab. The ball rebounds to a height of 1.40, Calculate the impulse delivered to the ball during the impac
A ball with a mass of 0.620kg is initially at rest. It is struck by a second ball having a mass of 0.405kg , What is the change in the total kinetic energy of the two balls
A wire carries current to the north (towards the top of the computer screen) through a magnetic field. what is the direction of the magnetic force on the current-carrying wire
A 2 meter wire carrying 1 A of current is at a 90 degree angle to a magnetic field. If the current feels a force of 1 N from the magnetic field, what is the strength of the field
A wire of radius R carries a current with density: J =C(R-r). Find the total current carried by the wire
parallel plates that have an opposite charge have a distance of 5.33 mm between them, and a 600V potential difference. What is the magnitude of the electric field strength
A telescope has magnification of 40 and length of 1230mm. What are the focal lengths of the eyepeice
A solenoid is 1.6 m long and has 530 turns per meter. what is the cross sectional area of this solenoid if it stores .31 J of energy when it carries I=14A
The energy required to dissociate 1 mol of O2 to form 2 mole oxygen is 118kcal. find the wavelength of the photon
A photon of wavelength .1 nm scatters from a free electron at rest. Find the wavelength of the scattered photon
A 0.45 caliber bullet (m = 10.7 g) is fired into a large block of wood (M = 0.750 kg) so that the bullet becomes lodged in the block. What is the speed of the block after the collision
A 10.0 kg block is to be projected across a rough horizontal floor by means of a compressed spring device. What is the work done by friction, in joules, as the block slides to a stop
An organ pipe is shown to resonate at 240 Hz, 320 Hz, and 400 Hz. It does not resonate at any other frequencies between 240 Hz and 400 Hz, How long is the organ pipe
A ball of mass (m) 0.5 kg is attached to the end of a string having length (L) 0.5 m. The maximum possible value of angular velocity of ball is
A police car with a siren of frequency 8 kHz is moving with uniform velocity 36 km/hr towards a tall building which reflects the sound waves. The frequency of the siren heard by the car driver is
The human eye can detect light intensities as small as about 8 10-23 W/m2. How does this force compare to the weight of an electron
a sloenoid 3.0 cm long consists of 8013 loops of wire if the magnetic field inside the solenoid is 3.0 T, what is the magnitude of the current that flows through it
The primary coil of a transformer has 100 turns and its secondary coil has 400 turns. If theac voltage applied to the primary coil is 120V
A long straight wire carrries a current I1 of 15 A. A rectangular coil with two sides parallel to the straight wire has sides 5 cm, what is the net force of the coil
A square wire carrying a current of 5 A has sides of 10 cm and is placed in the yz plane. The torque on the square is
A coild of wire, initially carrying no current, has a current of 10 A established in .4 seconds. What is the total magnetic flux through the coil when the current is 10 A