The answer is that all marine animals feed by seperating food particles from water, known as filter feeding.
I looked up the speed of sound in water ... you could have done it,
but I did it for you. It said 1,484 m/s ... I don't know if that's for fresh
water or sea water, but for 5 points I'm not going to worry about it.
Time = (800 meters) x (1 sec / 1,484 meters)
= (800 x 1,484) seconds
= 0.539 second . (rounded)
The first choice on the list is the closest one.
Answers:
1)
2)
Explanation:
1) Acceleration is defined as the variation of Velocity in time :
(1)
A body also has acceleration when it changes its direction.
In this case we have a bus with a velocity of 60m/s to the east, that accelerates in a time 10s. So, we have to find the bus's acceleration:
(2)
(3) This is the bus's accelerration
2) Now we have a car that accelerates to the west in order to reach a speed of in the same direction, and we have to find the time it takes to the car to reach that velocity.
Therefore we have to find from (1):
(4)
(5)
Finally:
(6)
Sitting = no movement
KE=0
Explanation:
I think it's c but not sure