Why does sound travel more quickly through cold water than warm water?

The molecules move more quickly in cold water, making sound transmit more quickly.

Sound does not travel more quickly through cold water.

The molecules in cold water being closer together means sound has less distance to travel.

The more rapid motion of warm water disrupts the transmission of sound.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

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.