You are part of a search-and-rescue mission that has been called out to look for a lost explorer. you've found the missing explorer, but you're separated from him by a 200-m-high cliff and a 30-m-wide raging river. to save his life, you need to get a 5.0 kg package of emergency supplies across the river. unfortunately, you can't throw the package hard enough to make it across. fortunately, you happen to have a 1.0 kg rocket intended for launching flares. improvising quickly, you attach a sharpened stick of negligible mass to the front of the rocket, so that it will impale itself into the package of supplies, then fire the rocket at ground level toward the supplies.

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.