What fraction of the iodine-131 nuclei would remain
A solution of sodium iodide containing iodine-131 was given to apatient to test for malfunctioning of the thyroid gland. What fraction of the iodine-131 nuclei would remain undecayed after9.0 d?
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The plane is released when it has been displaced 0.50 meter from its equilibrium position by the catapult. What is the approximate energy acquired by the airplane from the catapult during takeoff?
Determine two coterminal angle (one positive and one negative) for each angle. Give your answer in radians. Find the complement and supplement of each angle.
Suppose an electron is released from rest in a uniform electric field whose strength is 5.90 x 103 V/m. (a) Through what potential difference will it have passed after moving 1.00 cm?
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A ball is thrown horizontally off of a 40-meter high cliff. It lands in the water 30 meters beyond the edge of the cliff. Find the speed with which the ball was thrown.
Estimate the amount of water this cyclist must evaporate per hour (through sweat) to get rid of excess body heat she produces. Assume a skin emissivity of .70
Suppose you have 20.81 g of water,initially at 25.00 oC, in a perfectly insulated container. You then add water which is at 83.71 oC tothe container until the combined sample of water has a temperature of 58.71 oC.
Non-relativistic protons accelerated by a potential difference U form a round beam with current I. Find the magnitude and direction of the Poynting vector outside the beam at a distance r from its axis.
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