Magnetic force on a loop of wire

A long, straight wire carries a current of 10 A to the left. Next to the wire is a square loop with sides 1.0 m in length, as shown below. The loop carries a current of 2.5 A in the direction indicated. (See attachment for diagram) (a) What is the direction of the net force exerted on the loop? away from the wire t ...continues

Electric current and magnetism

I've attached a description of the problem. I just don't understand what it is asking. --- 5. Two long, straight wires are oriented perpendicular to the computer screen, as shown below, in which L = 4.5 cm. The current in one wire is I1 = 3.1 A, pointing into the screen, and the current in the other wire is I2 = 4.0 A, poin ...continues

Magnetism

I don't know how to do the problem. I can't set it up correctly. (See attached file for full problem description)

Two parallel wires, each carrying a current of I = 3.1 A, are shown below, where d = 5.2 cm. The current in wire 1 is in the opposite direction of wire 2. Find the direction and magnitude of the net magnetic field at points A, B, and C.

1. Two parallel wires, each carrying a current of I = 3.1 A, are shown below, where d = 5.2 cm. The current in wire 1 is in the opposite direction of wire 2. Find the direction and magnitude of the net magnetic field at points A, B, and C. See attached file for full problem description. I don't know how to do the problem ...continues

The current in a solenoid with 22 turns per centimeter is 0.50 A. The solenoid has a radius of 1.5 cm. A long, straight wire runs along the axis of the solenoid, carrying a current of 23 A. Find the magnitude of the net magnetic field a radial distance of 0.69 cm from the straight wire.

3. The current in a solenoid with 22 turns per centimeter is 0.50 A. The solenoid has a radius of 1.5 cm. A long, straight wire runs along the axis of the solenoid, carrying a current of 23 A. Find the magnitude of the net magnetic field a radial distance of 0.69 cm from the straight wire. mT I don't understand how the so ...continues

Freq., amplitude, mass:

A spring of force constant 4.0 N/m oscillates with a period of 1.0 sec. with a particular mass m attached. A total energy of 0.130 J is put into the spring-mass system. What is the frequency of the motion? Find the amplitude of the motion. Find the value of the mass, m. What is the speed of the mass when its displacement is 15.0 ...continues

Object frequency:

Two trains on separate but parallel tracks are moving in the same direction. The fast train is moving 200 km/h and the slower train is moving 100 km/h. The slow train blows its horn with a frequency of 600 Hz. Determine the frequency the faster train hears as it approaches the slower train from behind. Determine the frequency th ...continues

Find noise from a helicopter rotor

The noise from a helicopter rotor is distributed equally in all directions. If the rotor generates 70 watts of sound power, find the intensity level of the sound in dB on the ground directly beneath the helicopter when its altitude is 120 m. Also find the altitude in meters for the sound to be reduced to 60 dB at the same locati ...continues

Wave pattern

A pipe that is closed at one end is 0.5 meters long at 25o C. Sketch the standing wave pattern (loops with nodes and antinodes) for these three cases: (attached picture file) What is the wavelength of the 2nd overtone? If the air in the pipe is also at 25o C, what is the frequency of the 2nd overtone?

Electric field of three charges

Refer to three charges shown & arranged in attached picture file: What is the magnitude and direction of the force on the - 3.25 mC charge? What is the magnitude and direction of the electric field at point x? See attached file for full problem description.