The answer is D, they reproduce quickly.
I really wish I could help but I really dk the answer and I need points asappppp so that I can get answers to my questions so I can give them in rnnnn!!! Sorryyyyy (atleast I'm being honest)
Answer:
ccccccccc or bbbbbbb or aaaaaaaa or ddddddd
The relationship between gravity and pressure in a nebula is that pressure balances gravity. The pressure exerted by a static fluid depends only upon the depth of the fluid, the density of the fluid, and the acceleration of <span>gravity.</span>
Let Karen's forward speed be considered as positive.
Therefore, before the headband is tossed backward, the speed of the headband is
V = 9 m/s
The headband is tossed backward relative to Karen at a speed of 20 m/s. Therefore the speed of the headband relative to Karen is
U = -20 m/s
The absolute speed of the headband, relative to a stationary observer is
V - U
= 9 + (-20)
= - 11 m/s
Answer:
The stationary observes the headband traveling (in the opposite direction to Karen) at a speed of 11 m/s backward.
