Author Question: One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated ... (Read 34 times)

Destiiny22 · **on:** Jul 29, 2018

One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated with such storms. Assume that the air pressure inside of a sealed house is 1.02 atm when a hurricane hits.

The hurricane rapidly decreases the external air pressure to 0.910 atm. A square window in an outside wall of the house measures 2.02 m on each side. What net force (directed outwards) is exerted on this window? (1 atm = 1.01 105 Pa.)
A) 5.37 105 N B) 5.14 104 N C) 4.53 104 N D) 4.78 105 N

Question 2

What must be the diameter of a cylindrical 120-m long metal wire if its resistance is to be 6.0 ? The resistivity of this metal is 1.68 10-8 m.

A) 0.65 cm B) 0.65 mm C) 0.0325 mm D) 0.065 mm E) 0.325 mm