Integrated Science- Study Guide: Water Please help me out here, report cards due dec.18, and once I'm done with this study guide I have an EXAM and its 21 question so please answer each question correctly so my score won't be low thanks! And, also I really appreciate ya'll helping me in this app
Each question is 3 points so, I'll make this question worth...15 points Please answer each question correctly thank you!

You have been called to testify as an expert witness in a trial involving a head-on collision. car a weighs 1515 lb and was traveling eastward. car b weighs 1125 lb and was traveling westward at 44.0 mph. the cars locked bumpers and slid eastward with their wheels locked for 22.5 ft before stopping. you have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . how fast (in miles per hour) was car a traveling just before the collision? (this problem uses english units because they would be used in a u.s. legal proceeding.)

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?