Answer:

Step-by-step explanation:
= Mass flow rate of water = 320 kg/s
= Mass of water on the door
= Time
= Velocity of water on the door = 20 m/s
Force is given by

The average force is exerted by the stream of water is
.
Answer:
<h3>Part A</h3>
As per the given information there are 4 different price intervals.
<u>Let x be the age and y be the admission price, then we have following equations;</u>
- y = 10.50, if 15 ≤ x ≤ 61
- y = 8.50, if x ≥ 62
- y = 6.50, if 2 ≤ x ≤ 14
- y = 0, if 0 ≤ x ≤ 1
Answer:
Yes
Step-by-step explanation:
12 + 3(20) = 72
12 + 60 = 72
Answer is C hope this helps
Brianliest is appreciated