The EPA requires treated tap water<span> to have a detectable </span>level of chlorine<span> to help prevent contamination. The allowable </span>chlorine <span>in </span>drinking water<span> (up to 4 parts per million) pose “no known or expected health risk [including] an adequate margin of safety.”</span>
This aint even a question
Answer:
if you can show us the available answers i would be able to hleo you
Explanation:
Explanation:
<u>Using equations of motion</u> :
(A) we know that,
u = 0
a = 3.7 m/s^2
S = 63
(B)
v = u + at
21.6 = 0 + 3.7 * t
<u>t (time to reach 63 m) = 5.83 seconds</u>
"Three short blasts" sound signal alerts others when a boat is backing up based on the boating safety rule. The short blast is a sound which has one second period, thus three short blasts mean three of this kind of sound. The sound signal is used for alerting anything surrounding the boat to avoid a collision.