9. Clothing acts as insulation to keep body heat in. Bryan wants to know whether a wool sock or a cotton sock will be better at keeping heat in. He puts the wool sock around cup 1 and the cotton sock around cup 2 and then fills both cups with hot water. wool cotton cup 1 cup 2 How can he tell which sock is a better insulator? A. measure the temperature of the air B. measure how long it takes to drink the water C. measure which cup of water stays hot the longest D. measure the temperature of each sock by itself

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98

What is happening when the water inside a kettle heats up and begins to boil