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A line of positive charge is formed into a semicircle of radius R = 57.1 cm.
The charge per unit length along the semicircle is described by the expression lambda = lambda0cosθ. The total charge on the semicircle is 13.7 µC. Calculate the total force on a charge of 2.82 µC placed at the center of curvature.
The Achilles tendon is subjected to a large tension stress that results in a strain of 5%. how much does it elongate as a result of this strain
A generator has a square coil consisting of 356 turns. The coil rotates at 91.5 rad/s in a 0.211-T magnetic field. What is the length of one side of the coil
A 35.0g bullet moving at 475 m/s strikes a 2.5kg bag of flourthat is on ice, at rest. The bullet passes through the bag, andexits it at 275 m/s. How fast is the bag moving when the bulletexits?
Neglect friction, what steady force, applied at its outer edge and perpendicular to plane of the door, can move it from rest through an angle of 90° in 30 s.
A 2.0- kg piece of wood slides on the surface shown inFig 7.33 The curved sides are perfectly smooth, but the roughhorixontal bottom is 30 m long and has a kinetic frictioncoefficient of 0.20 with the wood. what is the total amount of work done by ..
A 12 V battery (which has an electric potential difference of 12 V between its terminals) is connected to a 10 W light bulb for 1 second. Calculate how much charge flows through the light bulb in the 1 second.
A sailboat race course consists of four legs, defined by the displacement vectors , , , and , as the drawing indicates. find the distance of the fourth leg and the angle
The density of a certain metal solid is 7.2 x 10 ^ 3 kg/m^3, What is the speed of sound in this metal
A hydrogen atom initially in the n=3 level emits a proton and ends up in the ground state. what must the energy of this photon be and What is the energy of the emitted photon
A car is stopped at a traffic light. When the light turns green it accelerates at 2.5 m/s2 for 16 seconds. How many seconds does it take from start to stop
q1. illustrate the force vectors with their tails at the origin of coordinate system. the orientation of your vectors
an insulated beaker with neligiblr mass contains.280kg of liqid water at a temperature of 84.5degree celicous. what is the final temperature of the ice/ water mixture
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