The lower end of a long plastic straw is immersed below the surface of the water in a plastic cup. an average person sucking on the upper end of the straw can pull water into the straw to a vertical height of 1.1 m above the surface of the water in the cup.
(a) what is the lowest gauge pressure that the average person can achieve inside his lungs?
(b) explain why your answer in part (a) is negative.
Answers: 3
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Which statement best explains why the overall charge on an atom is zero?
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Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?
Answers: 3
The lower end of a long plastic straw is immersed below the surface of the water in a plastic cup. a...
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