for all parts of this problem, assume the effects of viscosity are negligible (a) the water cannon in the seattle center international fountain launch bursts of water 35 meters vertically into the air. before the cannon nozzle opens, the water inside is stationary. what pressure is the water under at the instant the launch begins? (b) from the mid- f= ? n term of winter 2012: a container with two moveable pistons is filled with incompressible oil with a specific gravity of 0.8. the larger piston has an area of 10,000 mm2 and on it is a car with a weight of 10,000 n and a specific gravity of 2.0. how much force must be applied to the smaller piston (which has an area of 10 mm") to keep the car at a constant height? 10,000 n a = 10 mm2 a = 10,000 mm2

You are a researcher for a golf club manufacturer. you are given two identical looking cubes of a metal alloy. you are informed that they are made of the exact same material, but one is crystalline, whereas the other is amorphous. it is your job to determine which one is amorphous this one is more stress-resistant and is useful in reinforcing golf clubs. which of the following is the best way to determine which is which? a. determine the density of each cube. the more dense one is the amorphous solid. b. melt both cubes and look for a broader range of melting temperatures. the one that melts over a broader range of temperatures is the amorphous solid. c. determine the density of each cube. the less dense cube is the amorphous solid. d. melt both cubes and measure the range of melting temperatures. the one that melts over a narrower range of temperatures is the amorphous solid.