A class is performing an experiment to keep an ice cube solid as long as possible. Which student's actions could be a source of error in this experiment?

A. Jerrie wrapped the ice cube loosely in several layers of cotton and aluminum foil.

B. Jody outlined the ice cube to measure it before it started to melt.

C. Carey put the ice cube in cold water and recorded the temperature every 2 minutes as the ice cube melted.

D. Angelina waited until the next day to observe the ice cube and O record how long it took to melt.

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.)

True or false graphs must include scales that increase by the same amount

If we relied solely on the nonrenewable resources found in the u. s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal