At a 4th of July celebration, aerial fireworks produce a variety of colors. Which element(s) would you include to produce crimson red? Yellow?

c. 75.7

i think that is the right

did anyone actually do this? like if anyone has submitted this i rly need .

i would say b

explanation:

but i think i would need more information than that

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)