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In one of newly built particle accelerators a single proton experiences the following force: F= -a/y^3 *j , where a= 4 N m^3 , and j is the unit vector along y axis. If the proton moves from point y1 = 0.25 m to the point y2 = 0.41 m along a straight-line path
Find:
the work done by the force (in J)
A box slides down a ramp between a delivery area and soring area. You must determine the angle this ramp should have with the horizontal direction so that a 500 pound box takes 5.0 seconds to slide down the ramp starting from rest at the top. While t..
10 A of current flows through a wire oriented perpendicular to a magnetic field strength of .2T, What is the magnetic force per unit length on the wire?
The location of a particle is measured with an uncer- tainty of 0.11 nm. What is the minimum uncertainty in the velocity measurement
q1. a 3.60-rm m-long 430 rm kg steel beam extends horizontally from the point where it has been bolted to the framework
in a performance test each of two cars takes 9.3 s to accelerate from rest to 25 ms. car a has a mass of 1415 kg and
Two parallel plates of area 70cm2 are given charges of equal magnitudes 9.7*10-7 C however opposite signs. The electric field within the dielectric material filling the space among the plates is 2.1*106V/m. Compute the dielectric constant of the mate..
While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 93.0 N toolbox, causing it to start sliding downward, starting from rest.
Two balls with a net charge of - 4.0 ?C and + 10.0 ?C are separated by 2 cm. What is the electrostatic force on the positive charge
Lennard-Jones formula U(r)=k[(a/r)^12 - 2(a/r)^6] where r is the center-to-center distance between the atom and k is a positive constant. a) plot U vs r. b) determine the force that goes with this potential. c) show that the equilibrium separation..
The sketch at the left shows a square loop of wire. Its resistance is 5 ohm. Its dimensions are shown: a = 4.0 cm, b = 5.0 cm. The nearby wire carries a current of 10.0 A. What is the magnitude of the magnetic flux in the loop of wire?
At 28 millimeters from a sound source, the intensity level is 70 dB. Determine what is the level at distance of 75 meter
Block A with mass 4 kg travels with speed vi=3 m/s on a smooth horizontal surface and collides with a stationary block B whose mass is 4 kg. How much kinetic energy was lost in the collision
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