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3 years ago

8

When Elijah went to the top of Mount Carmel to pray, the first evidence that God was about to fulfill His promise to send rain w

as the appearance in the sky of a cloud the size of a man's hand.
true or false

1 answer:

SashulF [63]3 years ago

6 0

It was in the shape of a mans hand. As a christian i know this, but i dont think it was the size of a mans hand, or it'd be hard to see.

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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

7 0

2 years ago

What characteristic method of Roman architecture was used to create The Basilica of San Lorenzo in Florence? a. statistics b. ma

Yanka [14]

Answer:

the answer to the question is B

3 0

2 years ago

Chapter 13 1. The point of the statement in the first paragraph, “The public is despotic… to its generosity” is to

alexandr1967 [171]

Yea your correct I believe... hardly understood what it meant when I read it so I could be wrongT.T

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3 years ago

Do you know whos seates re better<br> trump or biden

Ede4ka [16]

Answer:

biden

Explanation:

biden is better

trump is gross

he is racist

and has a crush

on his own

daughter

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2 years ago

What must be true if mesentery is a organ

nevsk [136]

The mesentery, Coffey argues, should be considered an organ because it holds up our intestines (a discrete role) and has a distinct structure. “It has a beginning and an end, and in between it kind of fans out like a Chinese fan,” he says, and is usually about two feet long

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3 years ago