Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 2.50 W / m 2 . 2.50 W/m2. If a radar unit leaks 10.0 W 10.0 W of microwaves (other than those sent by its antenna) uniformly in all directions, how far away must you be to be exposed to an average intensity considered to be safe? Assume that the power spreads uniformly over the area of a sphere with no complications from absorption or reflection.
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How is the ideal mechanical advantage of a wheel and axle calculated?
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Aman is trying to drag a small tree that he cut down. if the static coefficient of friction of the tree on the ground is 0.5 and the tree weighs 670 n, what is the minimum amount of horizontal force that the man will need to apply so that the tree will start moving? o a. 465 n o b. 230 n o c. 670 n o d. 335 n
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Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 2.50 W /...
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