Question 9 of 34 Which statement best describes what happens when heat is transferred from
a toaster to bread?
A. Some of the thermal energy is transferred to warm the bread, and
some is destroyed.
B. Some of the thermal energy changes to chemical energy, and
some is destroyed.
C. The thermal energy used to toast the bread is destroyed.
D. The thermal energy used to toast the bread changes to chemical
energy
SUBMIT

i just learnt this recently but i need to look through my notes again

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)