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A long straight wire carries a current of 88.0 A. An electron, traveling at 6.5x10^7 m/s, is 1.5 cm from the wire. What force (magnitude and direction) acts on the electron if the electron's velocity is directed toward the wire?
A steel ball of mass 0.400 kg is fastened to a cord that is 60.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal. Find the speed of the block just after collision
A tungsten target is struck by electrons that have been accelerated from rest through a 62.0-kV potential difference. Find the shortest wavelength of the radiation emitted
A small object is located 31.6{\rm cm} in front of a concave mirror with a radius of curvature of 39.0{\rm cm}. Where will the image be formed
Estimate the boiling point of a 0.6 molal solution of NaCl in water, What is the osmotic pressure of a 100 mL of toluene solution that contains a total of .005 moles of a polymer dissolved in it at 25°C
A spool of wire of mass 6.9 kg and radius 0.28 m is unwound under a constant wire tension 15 N. Assume the spool is a uniform solid cylinder that rolls without slipping. Find the friction force on the bottom of the spool
An electron is accelerated from rest in a uniform electric field of intensity 420 N/C. Find the following: its velocity and kinetic energy after 3.0 nanoseconds. the distance it travels during the time interval
An object is shot at 56 m/s horizontally off the roof of a building which is 55 meters above the ground. How long does it take the object to reach the ground in seconds
Forces are vector quantities with units of Newtons (N); 9.8 N of force are required to support 1.0 liter of water near the surface of the Earth. In this question, you eventually have to add three forces acting on a particular object so as to find ..
Suppose that the helium atom, with a filled 1s electron shell, has the same ground-state radius as the Bohr hydrogen atom, Find the density of the 4He atom
A 23- bullet traveling 220 penetrates a 2.6block of wood and emerges cleanly at 155. how fast does it move after the bullet emerges
The compressor of an air conditioner draws an electric current of 21.2 A when it starts up. If the start-up time is 1.75 s long, then how much electric charge passes through the circuit during this period?
Three charges (Q1, Q2, and Q3) of equal size and same sign are places on the corners of an equilateral triangle. What is the net electric field at the geometric center of the triangle
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