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Electrons in an x-ray tube are accelerated through 100 kV and directed toward a target to produce x-rays. Determine the power of the electron beam in this tube if it has a current of 12.0 mA.
a rectangular aluminum bar with a cross-section of 0.02 x 0.08 m2 and length 1 m carries a current of 100a. the
Two blocks of mass m are suspended vertically as shown (one block by a spring, the other block to the first by a string), and initially motionless. An instant after the string is cut:
A solenoid is designed to produce a magnetic field of 2.50×10?2 at its center. It has a radius of 1.70 and a length of 44.0 , What total length of wire is required
A 10g ball of clay is thrown horizontally at 30m/s toward a 1.5kg block sitting at rest on a frictionless hi surface. The clayts and sticks to the block. What impulse does the clay exert on the block
You fly from Boston's Logan Airport, at sea level, to Denver, at an altitude of 1.6 . Take your mass as 69 and the zero of potential energy at Boston. What is your gravitational potential energy in Denver
consider samples of pure h2g and pure o2g each at 300 k and 1 atm. for each of the following properties state which gas
A infinitely long metal pipe of square cross section, with side length a, has two of its side that are opposite each other held at a constant potential V_0. The remaining two sides, that are also opposite each other, are grounded. Find the potential ..
the cycle for a heat engine that uses a gas having ? =1.25. The initial temperature is T1=300K, What is the power output of the engine
Two force act on a 5.0kg object sitting on a frictionless horizontal surface. What is the acceleration of the object
Two parallel conductive plates of area 0.3m^2 hold equal but opposite charges of magnitude 30uC on either side. find the electric force acting on am electron between the plates
You push a 1.5 kg block against ahorizontal spring, compressing the spring by 18 cm. What is the block-table coefficient of kinetic friction
Two football players go to kick a ball at the same time. One kicks it with a velocity of 25ms-1 at an angle of 12o to the horizontal, What is the resultant velocity of the bal
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