If you increase the frequency of a sound wave four times, what will happen to its speed? O A.
The speed will increase four times.
О В.
The speed will decrease four times.
OC. The speed will remain the same.
D.
The speed will increase twice.
O E.
The speed will decrease twice.

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.