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Rail guns can accelerate an object by using the magnetic force on a current carrying device. A rail gun is constructed to accelerate a length of copper wire, having a radius of 5.1 x 10-4 m and density, = 8960 kg/m3. The rails have a length L = 1.0 m and are in a constant magnetic field B = 2.0 T, oriented perpendicularly to the plane defined by the rails. The wire forms an electrical connection across the rails at one end of the rails. The wire starts from rest at this end of the rails, and when triggered, a current of 10 KA flows through the wire. Calculate the speed of the wire as it leaves the rail.
A camper is trying to start a fire by focusing sunlight onto a piece of paper. The diameter of the sun is 1.39 × 109 m, What is the area of the sun's image on the paper
The pilot of an airplane executes a loop-the-loop maneuver in a vertical circle. What is the pilot's apparent weight at the lowest point if his true weight is 160 lb
Find the energy required to flip a magnetic dipole of 3 x 10^(-4) A*m^(2) in a magnetic field of 0.6T
The max wavelength of light, which emits electrons is 460 nm. Calculate work function of sodium
Two elastic particles, each with mass m, collide head on. Initially they have speeds v1 and v2. What are their speeds after the collision
Your spaceship lands on an unknown planet. You drop a 1.50 kg wrench from 5.50 m above the ground, What is the mass of the planet, in kilograms
What is true of the net force when 3 or more forces are in a state of equilibrium, and If a force (F) make an angle (theta) with the x-axis, what are the formulas used to the x and y components of this force
The outside mirror on the passenger side of a car is convex and has a focal length of -5.7 m. compute the magnification of the mirror
A 6.5- kg block oscillates with an amplitude of 0.100 m on a light spring of constant k = 16.0 N/m. What is the maximum value of the block's velocity
Select one of the following regions of the electromagnetic spectrum: radio wave, infrared, ultraviolet, X-ray, Gamma rays. What type of objects emit at your selected region
A woman stands on a scale in a moving elevator. Her mass is 50.5 kg, and the combined mass of the elevator, What does the scale read during the acceleration
A baseball pitcher throws the ball in a motion where there is rotation of the forearm about the elbow joint as well as other movements. what is the rotational kinetic energy of the forearm
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