Jake collected samples of two substances while he was out walking. After taking the samples home, he ran tests and found that one substance is slippery and conducts electricity in water. These properties made Jake conclude that the substance is probably .

The other substance continuously made bubbles of hydrogen gas when Jake dropped magnesium into an aqueous solution of the substance. Jake concluded that the second substance is probably

ljjjljlj kjlk,ljym jlyu; jm; l mumytj

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)