I REALLY NEED HELP What is a closed physical system A. A system where matter and energy can enter, but not leave the system B. non of the answers are true C. A system where matter and energy can leave, but not enter the system D. A system where matter and energy cannot enter or leave the system

You probably already took this but if anyone wanted to know the answer it's D. "A system where matter and energy cannot enter or leave the system".

(I also took the quiz for it and got it correct)

D.A system where matter and energy cannot enter or leave the system.

is the closed physical system.

Explanation:

hey mate, Hope it helped you!!

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles