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When the nuclear reactor accident occurred at Chernobyl in 1986, 2.0×107Ci were released into the atmosphere.
Assuming that this radiation was distributed uniformly over the surface of the Earth, what was the activity per square meter? (The actual activity was not uniform; even within Europe wet areas received more radioactivity from rainfall).
Express your answer using two significant figures.
A single conducting loop of wire has an area of 6.7 10-4 m2 and a resistance of 110 . Perpendicular to the plane of the loop is a magnetic field of strength 0.18 T. At what rate (in T/s) must this field change if the induced current in the loop is to..
The index of refraction of crown glass for red light is 1.51, while for blue light it is 1.531. Find the angle of refraction for blue light
Two spheres of mass m and a third sphere of mass M form an equilateral triangle, and a fourth sphere of mass mB is at center of the triangle.
A baseball with a mass of 0.152 kg is moving horizontally at 32.0 m/s [E], when it is struck by a bat for 0.00200 seconds, Find the average net force of the ball
A cylinder of radius 25 cm is filled with an ideal fluid, If the height of the two cylinders is exactly the same, what mass should be placed on the second cylinder to balanced the system
In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 7.30 m to a store. At what angle is the escalator inclined above the horizontal
Two converging lenses having focal lengths of 10.0 cm and 20.0 cm are placed 50 cm apart, as shown in the figure below. The final image is to be located between the lenses, at the position indicated.
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.150\muC on each plate. The plates are 0.600mm apart. What is the electric-field magnitude between the plates
A transport plane takes off from a level landing field withtwo gliders in tow, one behind the other. what minimum length of runway is needed
A pencil (mass 5.8g and length 8.3cm) is at first balanced so that it is sitting vertically on a flat table. If the pencil then falls, find its angular velocity just before it strikes the tabletop. Assume that the mass of the pencil is distributed un..
A fifteen-watt heater is used to heat a monatomic ideal gas at a constant pressure of 6.61 x 105 Pa. How long was the heater on
you put 1kg of water at 1 degree celsius together with 0.5kg of steam at 100 degrees celsius what will the final
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