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Q. Two long, straight wires lie in the x-y plane and are parallel to the x direction as shown in the figure below. The wires are both a distance of 2.6 m from the origin, and each wire carries a current of 32 A in the +x direction. Find the magnitude of the magnetic field at the point x = 0, y = 0.7 m, z = 0.
Q. A pulley system has an efficiency of 79.5 percent. How much of the rope must be pulled in if a force of 625 N is is needed to lfit a 75 kg desk 2.13 m ? (Disregard Friction)
In an effort to stay awake for an all-night study session, a student makes a cup of coffee by first placing a 200 W electric immersion heater in 0.320kg of water.
find out the magnitude of their acceleration. If the blocks move determine the magnitude of the tension in the string. If the blocks do not move determine the sum of magnitude of the forces of friction acting on the blocks. Show all the work.
Calculate the speed of block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across capacitor after the dielectric is removed is measured to be 200 V.
A 20.0 kg wood ball hangs from a 1.3 m long wire. The maximum tension the wire can withstand without breaking is 300 N. A 0.70 kg projectile travelling horizontally hits and embeds itself in the wood ball.
A bomb is dropped from an airplane in level flight at a speed of 970 km/h. The altitude of the aircraft is 2000 m. At what horizontal distance from the initial position of the aircraft will the bomb land.
Two long, straight wires cross each other at right angles, and each carries same current. Which of the following statements are true regarding the total magnetic field at the various points due to the two wires.
A 7000 kg plane is launched from the aircraft carrier in 2 seconds by a force of 350000 N. What is the plane's acceleration.
You're driving down the highway late one night at 20 m/s while a deer steps onto the road 44m in front of you. Your reaction time before stepping on the brakes is 0.50 s, and the maximum deceleration of your car is 11m/s^2 .How much distance is be..
Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track.
The head of a rattlesnake can accelerate at 50 m/s^2 in striking a victim. If a car can have the same acceleration, how long would it take for it to reach a speed of 100 km/h from rest.
Find a circuit to change the relationship between waveform and zero-volt axis & calculating the period of waveform.
How much greater is an angular momentum of the Earth orbiting about the sun than the moon orbiting about the Earth? (Set up a ratio of angular momenta using data on inside back cover. The period of the moon is about 27.3 days.)
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