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As a copper wire is heated, its length increases by 0.050%. What is the change in temperature of the wire? (copper= 16.6 x 10-6/Co)
In a cyclotron (one type of particle accelerator), a deuteron (of atomic mass 2.00 u) reaches a final speed of 11.0% of the speed of light while moving in a circular path of radius 0.475 m. What magnitude of force is required
A perfect cube with sides of 9.0cm is placed so that one corner is at the origin and its faces are parallel to the coordinate planes, find the total charge located within the cube
Two equal charges separated by a distance of 1 meter experience a repulsive force of 1,000 newtons. What is the strength in coulombs on each charge
A football of mass0.420 kg is thrown 60 m by a quarterback who imparts to it an initial velocity at an angle of 45 degrees above the horizontal. what force does his hand exert on the ball
A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 6.97 m/s relative to the ground. How fast is the train moving
A 2.5 meter tall, 65 centimeter diameter concrete column supports a 218000 kilogram load. Determine by how much is the column compressed
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. What is the change in length of the nail
An explosion breaks an object into two pieces, one of which has 1.60 times the mass of the other. If 8000 J were released in the explosion, how much kinetic energy did each piece acquire? Heavier piece
An object of mass 8 kilogram and charge 11 C is in a constant electric field of 18 N/C. Find the magnitude of acceleration of the object
A 0.310-m-thick sheet of ice covers a lake. The air temperature at the ice surface is -17.2 °C. In 4.30 minutes, the ice thickens by a small amount. Calculate the number of millimeters by which the ice thickens
A mass is oscillating on a spring with a period of 4.60 s. At t=0 s the mass has zero speed and is at x=8.30cm. What is the value of t the first time after t=0s that the mass is at x=4.15?
fred got into his motorboat and motored for 12.5 km at a bearing of 30 degrees north of east. he then abruptly made a
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