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The four wires that lie at the corners of a square of side a = 3.40cm are carrying equal currents i=1.80Amps into (+) or out of (-) the page. The center of the square is located at the origin.
A) Calculate the y component of the magnetic field at the center of the square.
Determine the y-components of each of these field vectors. Use the superposition principle to get the total field and its y-component
B) Calculate the x-component of the force on a 1.0-cm long piece of the lower right-hand wire, due to the other three wires.
A vertical cylindrical tank contains 1.80 mol of an ideal gas under a pressure of 1.00 atm at 20.0oC. What is the mass of this piston
A small office building air conditioner operates on 250 V AC and consumes 3.88 kW, What is its effective resistance and How is energy related to power? Check units for consistency
A Force F= (6xi+ 5yj), where F is in newtons and x and y are in meters, acts on an object as the object moves in the x direction, Find the work W = integral (F · d vector r) done by the force on the object
A helium-neon laser (? = 632.8 nm) is used to calibrate a diffraction grating. If the first-order maximum occurs at 21.5°, what is the spacing between adjacent grooves in the grating? (In this problem, assume that the light is incident normally on th..
You and a friend are sitting in the bleachers of a major league baseball park,132m from home plate on a day when the temperature is 20° C. How much later does the other person hear the sound
A 569-?F capacitor is discharged through a resistor, whereby its potential difference decreases from its initial value of 88.5 V to 13.3 V in 4.57 s
A mass of 0.5 kg is attached to the end of a massless spring of spring constant 0.75 N/m. What is the total energy contained in this system
32 violins playing simultaneously with the same intensity combine to give an intensity level of 82 dB. a) What is the intensity level of each violin? (b) If the number of violins is increased to 64, will the combined intensity level be more than, les..
sometimes a person cannot clearly see objects close up or far away. to correct this type of vision bifocals are often
a calculate the inductance of a solenoid containing 300 turns if the length of the solenoid is 25.0 cm and its cross
The acceleration of gravity is 9.81 m/s^2. Assuming that air resistance is simply a constant 96 N force on the person during the fall, identify the person's velocity just before hitting the net. Answer in units of m/s.
a satellite is describing a circular orbit about the earth with speed v. the satellite is separated into two pieces by
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