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alexandr402 [8]
4 years ago
9

BRAINLIESTTT ASAP!

Biology
2 answers:
cupoosta [38]4 years ago
8 0

Answer:

the answer is b. I just took the test and I got it right. Please give me brainlyest.

Tanzania [10]4 years ago
4 0
All of them are highly reactive nonmetals
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The first P-wave of an earthquake took 11 minutes to travel to a seismic station from the epicenter of the earthquake. What is t
iris [78.8K]

Answer:

\large \boxed{\text{5280 km; 25.5 min }}

Explanation:

1. Distance from epicentre

The average speed of P-waves is about 8 km/s.

(a) Convert minutes to seconds

\text{Time} = \text{11 min} \times \dfrac{\text{60 s}}{\text{1 min}} = \text{660 s}

(b) Calculate the distance

\text{Distance} = \text{ speed} \times \text{time} = \dfrac{\text{8 km}}{\text{1 s}} \times \text{660 s} = \textbf{5280 km}\\\\\text{The seismic station's distance to the epicentre is $\large \boxed{\textbf{5280 km}}$}

2. Time for S-wave

The average speed for an S-wave is about 3.45 km/s.

\begin{array}{rcl}\text{Distance} & = & \text{speed} \times \text{time}\\\text{5280 km} & = & \dfrac{\text{3.45 km}}{\text{1 s}} \times \text{time}\\\\5280 \times \text{1 s} & = & 3.45 \times \text{time}\\\text{Time} & = & \dfrac{\text{5280 s}}{3.45}\\\\ & = & \text{1530 s}\\& = & \textbf{25.5 min}\\\end{array}\\\text{It took the first S-wave $\large \boxed{\textbf{25.5 min}}$ to arrive.}

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3 years ago
_______ glycemic index foods are best before exercise, while _______ glycemic index foods are best immediately after exercise.
Sliva [168]
Low glycemic index foods are useful before exercise and high glycemic index foods are good after exercise.
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Low glycemic index foods before exercise help to provide a steady source of energy during the exercise session, and high glycemic index foods quickly replenish the energy that was lost during exercise.
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What can be sources of error in a pH lab measuring the pH of several substances?
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Protists

Explanation:

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The offspring is most likely all going to be black because if the black is dominant and the speckled is recessive, the black with cover up the speckled! Hope this helped!
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For the average human, blood lactate:
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Explanation:

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