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A long, straight wire is tangent to a circular insulated conductor (insulation of negligible thickness). If the diameter of the loop is 9.10 cm and both conductors carry currents of 6.25 A (you choose the directions), find the magnitude of the net magnetic field at the center of the loop.
The truck in that example is traveling at 16 m/s. The density of air is 1.29 kg/m3. By how much does the pressure inside the cargo area beneath the tarpaulin exceed the outside pressure?
A steam engine takes in superheated steam at 290oC and discharges condensed steam from its cylinder at 70oC. If the useful power output of the engine is 210 kW, find how much heat does the engine discharge to its surroundings in 1.5 hour
A projectile is launched upward at an angle. What must this angle be with respect to the horizontal in order for the projectile to travel the farthest distance? Describe why.
A -70nC charge is distributed uniformly along the x-axis from x = -0.8m to x = 2.6m. Consider a point at y = 1.5m on the y-axis. What is the x-component of the electric field at the point
In the troposphere, the part of the atmosphere that extends from the surface to an altitude of about 11 km, calculate the pressure p at height y=8863m
When high-energy, charged particles move through a transparent medium with a speed greater than the speed of light in that medium, a shock wave, or bow wave, of light is produced. Calculate the speed of the electrons in the water
The highest-energy photons emitted by a hydrogen atom have an energy of 13.6 eV. Find the energy, in joules, of one of these photons
A certain string on a piano is tuned to produce middle C (f1= 261.63 Hz) by carefully adjusting the tension in the string
The ball sinks to the point where none of it extends out of the water and remains submerged such that the child does not sink. The child has a mass of 36 kg. What is the diameter of the ball? Suppose for this problem that the ball has negligible m..
An electron approaches a 0.500?nm?wide potential-energy barrier of height 4.60eV. What energy electron has a tunneling probability of 10%
A generator uses a coil that has 390 turns and a 0.65-T magnetic field. The frequency of this generator is 60.0 Hz, determine the length of the wire from which the coil is made
A dentist's drill starts from rest. After 2.90 s of constant angular acceleration it turns at a rate of 2.1 104 rev/min. Find the drill's angular acceleration
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