B. Keep cords and hoses away from heat, oil, and sharp objects.
You never carry an object by the cord no matter what the conditions are so that's why A and C are wrong
Answer:
<em>2.25 or 9/4.</em>
Explanation:
To solve this problem, you need to set up to equations with variables. Let q1 be the dynamic pressure of the slower fluid moving with velocity v1, and let q2 be the dynamic pressure of the faster fluid moving with velocity v2. Then,
v2 = 1.5v1
Given the equation q = 1
/2
nv2, substituting the dynamic pressure and velocity of the faster fluid gives q2 =
1
/2 n(v2)^2. Since v2 = 1.5v1, the expression 1.5v1 can be substituted for v2 in this equation, giving q2 = 1
/2 n(1.5v1)^2. By squaring 1.5, you can rewrite the previous equation as:
q2 = (2.25)(
1
/2
) n(v1)^2=(2.25)q1
Therefore, the ratio of the dynamic pressure of the faster fluid is
q2
/q1 = 2.25q1
/q1 = 2.25
<em>The final answer is 2.25 or 9/4.</em>
Can you list it better? Haha I don’t understand the answer
Answer:
there are 1/4 cups of Super Grain Cereal in the mixture
Explanation:
Super Grain cereal provides 240 calories per cup. Thus, for s cups of Super Grain cereal, there will be 240s calories
Crunchy Grain cereal provides 210 calories per 3/4 cups. Thus, 210 ÷ 3/4 per cup.
210 ÷ 3/4 = 280 calories, For c cups of Crunchy Grain cereal, there will be 280c calories
Jennifer mixes c cups of Crunchy Grain cereal, having 280 calories and s cups of Super Grain cereal, having 240 calories to get a final 1 cup mixture containing 270 calories, which can be expressed mathematically as:
280c + 240s = 270 ------- eqn(1)
Since, s cups of Super Grain cereal and c cups of Crunchy Grain cereal equals 1 cup, of the final mixture
c + s = 1 ------- eqn(2)
from eqn(2),
c = 1 - s
substitute c = 1 - s into eqn(1)
280(1 - s) + 240s = 270
280 - 280s + 240s = 270
- 40s = 270 - 280
-40s = -10
s = (-10)/(-40)
s = 1/4
Therefore, there are 1/4 cups of Super Grain Cereal in the mixture
Ans B
(Hope this helps can I pls have brainlist (crown)☺️)
