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A rod 50 cm long and 1.0 cm in radius carries a 2.0 microC charge distributed uniformly over its length. Find the approximate magnitude of the electric field.
a) 4.0mm from the rod surface, not near either end
b) 23 m from the rod
A gas expands from I to F. The energy added to the gas by heat is 423 J when the gas goes from I to F along the diagonal path.
A 6.4g lead bullet traveling at 460m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in te..
A certain string just breaks while it is under 25 N of tension. A boy uses this string to whirl a 0.75-kg stone in a horizontal circle of radius 2.00 m. The boy continuously increases the speed of the stone. At about what speed will the string bre..
Suppose a 65 kg person stands at the edge of a 6.5 m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1850 kg m2. Calculate the angular velocity of the turntable
A light ray with an incident angle of 38.5 degrees crosses from air to a solution and has an angle of refraction of 21.9 degrees. What is the speed of the ligth ray in the solution
A disk of radius 1.00 m is rotating with 5.39 rad/s and 5.39 rad/s2. What is the magnitude of the linear acceleration of a point on the outer edge of disk? (Give the answer in three significant figures and SI units)
A spaceship and an asteroid are moving in the same direction away from Earth with speeds of 0.76c, What is the relative speed between the spaceship and the asteroid
All the pulleys are frictionless, and the strings are massless. Illustrate what are the tensions in all the strings and what are the acceleration of the masses?
A hoop and a disk, both of 0.68- m radius and 4.0- kg mass, are released from the top of an inclined plane 2.6 m high and 7.7 m long. What is the speed of the disk
Gayle runs at a speed of 4m/s and dives on a sled, initially at rest on the top of a frictionless snow covered hill. After she has descended a vertical distance of 5m, her brother.
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 12.0 cm, find the electric field just inside the paint layer
A 7.0mW laser beam has a circular cross section with diameter 0.80mm, What is the maximum radiation pressure that this laser can exert on a mirrored surface
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