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When the same emf device is placed across the same two resistors in parallel, the current through the emf device is 65.0 A. What is the magnitude of the larger of the two resistances?
A test charge (q0 = -2.20 x 10-8 C), with a mass of 2.80 x 10-8 kg, is released from rest at one of the corners of the square. Determine the speed of the test charge when it reaches the center of the
Charges of -q and +2q are fixed in place, with a distance of 1 m between them. A dashed line is drawn through the negative charge, perpendicular to the line between the charges.
Some sunglasses have half-silvered mirrors on them (on the front). Why can the wearer see through them, but no one else can see her yes behind the glasses?
A color television set draws about 2.9 A when connected to 120 V. How much time is required for it to consume the same energy as the black-and-white model consumes in 1 hour?
A current of 6.09 A in a solenoid of length 13.6 cm creates a 0.361-T magnetic field at the center of the solenoid. How many turns does this solenoid contain?
A flat 136-turn current-carrying loop is immersed in a uniform magnetic field. The area of the loop is 6.15 cm2 and the angle between its magnetic dipole moment and the field is 53.7°. Find the
What is the x-component of the electric field at the point A? The y-component of the electric field is zero at point A.
1. The water cooling system in a car engine that carries hot water from the engine block to the radiator is an example of cooling by:
A charged particle is injected at 215 m/s into a 0.0897-T uniform magnetic magnetic field perpendicularly to the field. The diameter of its orbit is measured and found to be 0.0473 m. What is the c
A proton moves through a magnetic field at 29.9% of the speed of light. At a location where the field has a magnitude of 0.00617 T and the proton's velocity makes an angle of 151° with the field
A charge of 5.50 x 10-9 C and a charge of -3.00 x 10-9 C are separated by a distance of 60.0 cm. Find the position at which a third charge, of 10.0 x 10-9 C, can be placed so that the net electrostati
What is the acceptance angle of the fiber, when the fiber is in an index matching oil of index 1.462?
Find the resultant ((a) magnitude and (b) directional angle) of the three vectors by means of the component method. Express the directional angle as an angle above the positive or negative x axis.
Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. The electric field at a point P, which is 0.50 m from the center of the sphere, is 15,000 N/C and is directed
A spherical, non-conducting shell of inner radius r1= 10 cm and outer radius r2= 15 cm carries a total charge Q = 15 oC distributed uniformly throughout the volume of the shell. What is the magnitud
The electron's acceleration is due to two electric forces parallel to the x axis: F1 = +7.73x10^-17 N, and F2, which points in the -x direction. Find the magnitudes of the net force acting on the el
Find the magnitude and direction of the initial velocity. EXpress the direction as an angle with respect to the +x axis.
A particle is traveling along an arc of 6.5-in radius. The arc is the origin of a coordinate system. When the particle is at position A, its position vector makes a 45 angle with the X axis.
Two planes approach each other head-on. Each has a speed of 720 km/h , and they spot each other when they are initially 14.5s apart. How much time do the pilots have to take evasive action?
A large capacitance of 2.00 mF is needed for a certain application. (a) Calculate the area the parallel plates of such a capacitor must have if they are separated by 3.00 µm of Teflon.
A baseball is hit with a speed of 30.0m at an angle of 43.0. It lands on the flat roof of a 11.0 -tall nearby building. If the ball was hit when it was 1.0m above the ground, what horizontal distanc