An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does havedevices to measure distance and time accurately. she lmows her own mass is 7& 4 kg, but she is unsure of the mass of alarge gas canister in the airless rocket, when this canister is approaching her at 3.50 m/s, she pushes against it, whichslows it down to 1.20 m/s (but does not reverse it) and gives her a speed of 240 m/s. (a) what is the mass of this canister? (b) how much kinetic energy is "lost" in this collision, and what happens to that energy?

b.-4 units

all you   do is count how many times you move

answer: options

step-by-step explanation:

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.