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2 years ago

Which of the following is a characteristic of a person with integrity [Apex]

SAT

2 answers:

Alona [7]2 years ago

5 0

I think it’s a I hope it’s help

vovangra [49]2 years ago

4 0

Answer:

serves as a positive example

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Warm up, main activity and __________ three main parts of an exercise session. * a) running b) cooling down c) sitting

Marina86 [1]

Answer: b) cooling down

Explanation:

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2 years ago

Dale created slides with charts that support information in his presentation. What should do when he presents these slides? (3 p

Kitty [74]

Answer:

Explanation:

I took the test.

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2 years ago

Newton’s law of cooling states that for a cooling substance with initial temperature t0, the temperature t(t) after t minutes ca

antoniya [11.8K]

The cooling rate of the substance is approximately 0.0732.

According to the statement, the Newton's law of cooling is defined by the following formula:

$T(t) = T_{s} + (T_{o}-T_{s})\cdot e^{-k\cdot t}$ (1)

Where:

$T_{s}$ - Final temperature, in degrees Celsius.
$T_{o}$ - Initial temperature, in degrees Celsius.
$t$ - Time, in minutes.
$k$ - Cooling rate, in $\frac{1}{min}$ .
$T(t)$ - Current temperature, in degrees Celsius.

Please notice that substance reaches thermal equilibrium when $T(t) = T_{s}$ , that is when temperature of the substance is equal to the temperature of surrounding air.

If we know that $T_{o} = 80\,^{\circ}C$ , $t = 15\,min$ , $T_{s} = 50\,^{\circ}C$ and $T(15) = 60\,^{\circ}C$ , then the cooling rate of the substance is:

$60 = 50 + (80 - 50)\cdot e^{-15\cdot k}$

$\frac{60-50}{80-50}= e^{-15\cdot k}$

$\frac{1}{3} = e^{-15\cdot k}$

$k = -\frac{1}{15}\cdot \ln \frac{1}{3}$

$k \approx 0.0732$

The cooling rate of the substance is approximately 0.0732.

To learn more on Newton's law of cooling, we kindly invite to check this verified question: brainly.com/question/13748261

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2 years ago

Which of the following is true about AP classes?

kozerog [31]

I'm pretty sure it's A

Explanation:

I did a few quick Google searches on ap classes because I myself do not take them a I read that most colleges do take ap classes as credit. it's no guaranteed however as it says many, not all. and for C I looked it up and I'm assuming they can be taken anywhere. take what I say with a grain of salt though because like I said I just googled it, hope it helps though.

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3 years ago

Do y’all know a fee waiver code for College Board?

Alina [70]

Ask college board ........!!!!!!!!!!

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3 years ago