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The magnetic field at the center of a 1.4-cm-diameter loop is 2.3 mT.
A. What is the current in the loop?
B. A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2.3 mT?
The "size" of the nucleus in Rutherford's model of the atom is about 1.00 fm = 1.00E-15 m. find the electrostatic potential energy of the pair of protons
A good baseball pitcher can throw a baseball toward homeplate at 85mi/h with a spin of 1800rev/min. How many revolutions does the baseball make
A proton moving at 7.6 × 106 m/s through a magnetic ?eld of 8.8 T experiences a magnetic force of magnitude 2.5 × 10?12 N. What is the angle between the proton's velocity and the field
The distance between the endpoints is 2.79m and exactly 8 cycles are completed in 22.0 seconds. what is the radius, (in meters) and angular velocity of the circular motion
A single atom of cesium-133 has a mass, in atomic mass units, of 132.90545193 u. Determine the average binding energy per nucleon
In coming to a stop, a car leaves skid marks 76 m long on the highway. Assuming a deceleration of 6.50 m/s2, estimate the speed of the car just before braking. Express in m/s.
An elevator cable can withstand a maximum tension of 19,500N before breaking. The elevator has a mass of 480 kg and a maximum acceleration of 2.24 m/s2. Engineering safety standards require that the cable tension never exceed two-thirds of the breaki..
two small beads having positive charges 3q and q are fixed at the opposite ends of a horizontal, insulating rod, extending from the origin to the point x=d. a third small chatged bead is free to slide on the rod. at what position is the third bead..
An initially stationary hovercraft sits on a large lake. At time t=0 it accelerates due north at a rate of 1.2 m/s2 for 10 s, what is the velocity of the hovercraft at time t=40 s
man pulls a block of mass m = 15 kg up an incline at a slow constant velocity for a distance of d = 4.5 m. The incline makes an angle q = 35° with the horizontal. What is the work Wm done by the man
A rotating wheel requires 5.00 second to rotate 25.0 revolutions. Its angular velocity at the end of the 5.00 second interval is 100.0 rad/s. Evaluate what is the constant angular acceleration of wheel
A car of mass 100 kg moving on a horizontal road with a steady velocity of 10 m/s has a total frictional on it of 400N. Find the power due to the engine.
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