People can snorkel down to a depth of roughly one meter. This means that the additional pressure on the air in their lungs is roughly
a. 9 800 N.
b. 9 800 Pa.
c. 9 800 ATM.
d. 19 600 N.
e. 19 600 N/m2.
b
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Classify the following statement as a characteristic
(a) of electric forces only, (b) of magnetic forces only, (c) of both electric and magnetic forces, or (d) of neither electric nor magnetic forces. The force exerted on a charged object is proportional to its speed.
1.electric forces 2.magnetic forces 3.both electric and magnetic forces 4.neither electric nor magnetic forcesDiscuss the fate of meteoroids upon entering the atmosphere of Venus. How do the impact craters found on the surface support this idea? How are the numbers of impact craters affected by volcanism?
What will be an ideal response?
An object that is 75 cm tall is located 3.8 m in front of a plane mirror. The image formed by the mirror appears to be
A) on the mirror's surface. B) 1.9 m behind the mirror's surface. C) 3.8 m behind the mirror's surface. D) 1.9 m in front of the mirror. E) 3.8 m in front of the mirror.
An inorganic photovoltaic solar cell is made from which of the following?
(a) pnp-junction (b) MPM-junction (c) Pure silicon (d) pn-junction