Compare skater's total energy at point A and at point E?(disregard the friction) E
a. There is no enough information
b. They are the same
c. A is greater than E
d. E is greater than A
a
b
b
С ООО
c
C
d
d

c

Explanation:

because I've had this question before and got it right

the device is called “ rocket engine”

b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb