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4 years ago

Which is an example of a reflex?

SAT

2 answers:

ra1l [238]4 years ago

6 0

Answer:

C. A bobcat’s eyes adjust to the darkness by allowing more light in.

Explanation:

Karolina [17]4 years ago

4 0

C)
A bobcats eyes adjust to the darkness by allowing more light in!

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The president ______________ his membership to the club after we found out that he had _______________ us on parts of his applic

Ierofanga [76]

A USA because he's the president so

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3 years ago

Do you have to send your ACT/SAT score again to college after getting accepted if you want to go to that college

sveta [45]

No, because your accepted there

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3 years ago

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An anthropologist has determined that a newly discovered human bone is 8000 years old. how much of the original amount of carbon

AlladinOne [14]

The original amount of carbon 14 that is in this bone is 38.29%

The formula that is used to determine the original amount of carbon 14 in the bone is given as:

$y = ae^-^0^.^0^0^0^1^2^t$

The value of t is given as 8000.

What is to be done is to solve the equation using the value of t

$y = ae^-^0^.^0^0^0^1^2^(^8^0^0^0^)$

= ae⁻⁰.⁹⁶

Solve for exp(-0.96)

y = 0.3829a

= 38.29%

Therefore the amount of carbon 14 that is in the bone is 38.29%

<h3>What is carbon 14?</h3>

This is a method of radiocarbon that isused in the age determination of substances. That is after the dacay of nitrogen.

Read more on radiocarbon here: brainly.com/question/12693872

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2 years ago

suppose you push a hockey puck of mass m across frictionless ice for a time 1.0 s, starting from rest, giving the puck speed v a

saul85 [17]

Answer: Twice the previous time would be taken to reach the same speed v with the puck of mass 2m.

Explanation:

Let a Force pushes the hockey puck of mass m.

Then acceleration, a= \frac{F}{m}a=mF

From the equation of motion,

\begin{gathered}\➪ v=u+at\\ v=0+\frac{F}{m}\Delta t\end{gathered}⇒v=u+atv=0+mFΔt ......(1)

In the second case, when mass is 2m, then acceleration,

a'=\frac{F}{2m}a′=2mF

and t' is the time taken.

The final speed is v,

\begin{gathered}\➪ v=0+ a't'\\ \➪ \frac {F}{m}\Delta t=\frac{F}{2m}t'\\ \➪ t'= 2\Delta t\end{gathered}⇒v=0+a′t′⇒mFΔt=2mFt′⇒t′=2Δt using equation (1)

Hence, it would take two times the previous amount of time to push the pluck of double mass.

 I hope this is understandable and if my answer helped you please can you give me a brainliest its will really help me and thank you have a nice day!!

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3 years ago

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When o2 is released as a result of photosynthesis it is a direct by-product of.

enyata [817]

Answer:

answer is water molecules

Explanation:

The oxygen evolved during photosynthesis comes from water molecules.

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2 years ago

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