What is the “goldilocks zone? ” choose all that apply. an area that contains a planet that may be able to support life. an area that is so cold or so hot that liquid water cannot exist. an area that is neither too close nor too far away from a star. an area that is so close to a star that a planet would be irradiated.

An area that contains a planet that may be able to support life.

An area that is neither too close nor too far away from a star.  

Explanation:

Goldilocks zone is an area near a star which is neither too cold nor too hot and contains a planet that can support life. It is the area that is neither too close nor too far away from a star and liquid water can exist.

In solar system, Earth and Mars lie in the Goldilocks zone. Life exists on Earth and many missions have been sent to Mars in search of liquid water.

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s