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Imagine you have two 2.5 m long wires running parallel to each other (separated by 1.0 cm) carrying 200 mA currents. What is the magnetic force of one wire on the other if (a) the currents are both running in the same direction or (b) the currents are running in opposite direction?
Monochromatic light falling on two slits 1.5×10?2mm apart produces the fifth-order fringe at an 8.9?angle.
Elm Street has a pronounced dip at the bottom of a steep hill before going back uphill on the other side. Sitting on the scale while the car is parked gives a reading of 588 N. Analyze your data, using a graph, to determine the dip's radius of curv..
It is well known that bullets and other missiles fired at Superman simply bounce off his chest. Suppose that a gangster sprays Superman's chest with 6 g bullets at the rate of 100 bullets/min, the speed of each bullet being 450 m/s. Suppose too that ..
A circular coil enclosing an area of 180 cm2 is made of 210 turns of copper wire. The wire making up the coil has resistance of 9.0 ?, what is the average current in the coil during that time
a double slit separated by 0.0582 mm is placed 1.40 m from a screen.a if yellow light of wavelength 590 nm strikes the
What is the required resistance of an immersion heater that will increase the temperature of 0.50 kg of water from 10.0°C to 50.0°C
A tank contains mercury to a depth of 10.0cm with water to a depth 23.0cm floating on top. What is the gauge pressure at the bottom of th tank? (PHg=13.6g/cm^3)
A battleship is using sonar (reflected underwater sound signals) to detect the presence of nearby submarines. How far away from the battleship is the submarine
A ball of mass 0.640 kg moving east (+x direction) with a speed of 3.50 m/s collides head-on with a 0.84 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?
The ammonia molecule NH3 has adipole moment of 4.8e-30 C·m. Ammonia molecules in the gasphase are placed in a uniform electric field with magnitude 1590000N/C. What is the change in electric potentialenergy when the dipole moment of the molecule c..
a point charge 2q is at the origin and a point charge -q is located along the x-axis at xd. find a symbolic expression
Two converging lenses, each of focal length 14.9 cm, are placed 39.4 cm apart, and an object is placed 30.0 cm in front of the first lens. What is the magnification of the system
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