........................... i am alone..........................

Which of the following statements about main idea is true?.

Rina8888 [55]

Answer:

The main idea is a complete sentence; it includes the topic and what the author wants to say about it. If the author states the main idea in his paragraph it is called a “topic sentence.”

Explanation:

3 0

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

7 0

2 years ago

Finish the song Ra Ra Rasputin there was a

Ainat [17]

Answer:

This is the lyrics to Rasputin:

There lived a certain man in Russia long ago

He was big and strong, in his eyes a flaming glow

Most people looked at him with terror and with fear

But to Moscow chicks he was such a lovely dear

He could preach the bible like a preacher

Full of ecstasy and fire

But he also was the kind of teacher

Women would desire

Ra ra Rasputin

Lover of the Russian queen

There was a cat that really was gone

Ra ra Rasputin

Russia's greatest love machine

It was a shame how he carried on

He ruled the Russian land and never mind the czar

But the cassock he danced really wunderbar

In all affairs of state he was the man to please

But he was real great when he had a girl to squeeze

For the queen he was no wheeler dealer

Though she'd heard the things he'd done

She believed he was a holy healer

Who would heal her son

Ra ra Rasputin

Lover of the Russian queen

There was a cat that really was gone

Ra ra Rasputin

Russia's greatest love machine

It was a shame how he carried on

But when his drinking and lusting and his hunger

For power became known to more and more people

The demands to do something about this outrageous

Man became louder and louder

This man's just got to go, declared his enemies

But the ladies begged, don't you try to do it, please

No doubt this Rasputin had lots of hidden charms

Though he was a brute they just fell into his arms

Then one night some men of higher standing

Set a trap, they're not to blame

Come to visit us they kept demanding

And he really came

Ra ra Rasputin

Lover of the Russian queen

They put some poison into his wine

Ra ra Rasputin

Russia's greatest love machine

He drank it all and said, I feel fine

Ra ra Rasputin

Lover of the Russian queen

They didn't quit, they wanted his head

Ra ra Rasputin

Russia's greatest love machine

And so they shot him 'til he was dead

Oh, those Russians

3 0

3 years ago

Read 2 more answers

Why do you believe there has been an increasing interest in hemispheric specialization (the difference in right-brained and left

Fynjy0 [20]

Answer with Explanation:

"Hemispheric specialization" refers to an idea on how the different parts of the hemisphere (left and right) affects or controls the functions in the human body.

I believe there has been an increasing interest in hemispheric specialization because many people are <em>highly educated</em> nowadays which <em>makes them constantly curious with many things.</em>

Studying and investigating the roles of the two hemispheres allows people (the public) to know how their body's function. Exploring unknown areas of study is a normal activity for advanced species like the human beings.

Hemispheric specialization also allows health care professionals to know the underlying conditions of their patients and in this way, they can assist them with proper care.

4 0

3 years ago

Read 2 more answers

The most complex level of culture is the culture trait. True or False

taurus [48]

Culture trait : A culture trait is the learned system of beliefs, values, traditions, symbols and meanings that are passed from one generation to another within a specific community of people.

The least unit of culture is called the culture trait.

Hence the answer is FALSE.

6 0

3 years ago