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a) Two current carrying wires as shown in the diagram carrying current I1 = 5 mA , I2 = 20 mA. They are separated by a distance d = 2mm. Find the magnetic force per unit length acting on the two current carrying wire,
b) Will the force be attractive or repulsive? How did you determine that?
An unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 55.0km. with what speed (in km/h) will the spacecraft crash into the lunar surface
A platform is rotating at an angular speed of 2.5 rad/s. A block is resting on this platform at a distance of 0.34 meter from the axis. obtain the smallest distance from the axis at which the block can be relocated and still remain in place as the ..
a point charge of 7.0 x 10-9 c is located at the origin. how much work is required to bring a positive charge of 3.0 x
In exercising, a weight lifter loses 0.145 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. The work done in lifting weights is 1.21 x 105 J. (a) Assuming that the latent heat of vaporiza..
A tire 2.00 ft in diameter is placed on a balancing machine,where it is spun so that its tread is moving at a constant speed of60.0 mi/h. What is the acceleration of the stone as the tire is being balanced
Two geekie physics students with a combined mass of 133 kg jump into their old car to run out for some late night pizza. What is mass of the car
A runner accelerates to a velocity of 5.36 m/s due west in 3 s. His average acceleration is 0.64 m/s2, also directed due west. What was his velocity when he began accelerating
A stream iron draws 6.0A from a 120-V line. (A) How many joules of internal energy are produced in 20 min? (B) How much does it cost, at $0.080/kWh to run the steam iron for 20 min?
A 528 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 1.9 meters. What is the speed of sound in the substance
A car with 60 cm diameter tires is traveling at a constant speed of 100 km/hr. What is the angular velocity of the tires in rad/s?
A photon corresponding to a particular frequency of blue light produces a transition from the n = 2 to the n = 5 level of a hydrogen atom. Could this photon produce the same transition (n = 2 to n = 5) in an atom of X? Explain.
q1. three long wires wire 1 wire 2 and wire 3 hang vertically. the distance between wire 1 and wire 2 is 20.0 cm. on
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