42.Anna pours herself some room-temperature soda from a bottle and adds four ice cubes. In a few minutes the ice cubes are smaller and the soda is much colder. Which of the following best explains the change in temperature of the soda?

A. Heat flowed from the soda to the ice cube and caused it to partially melt.

B. Coldness flowed from the ice cube to the soda, making the soda cooler.

C. The cold water from the melting ice went into the soda, replacing the warmer water that was in the soda

D. The water from the melting ice makes the soda more dilute, and the lower concentration makes the temperature lower.

and send me link for explenation

Answers

Answer 1

Answer:

Option A

Step-by-step explanation:

According to the second law of thermodynamics, heat always flows from hot to cold places, unless work is done on the system. In this case the ice is colder than room temperature, and therefore the heat flows from the soda to the ice cube. The ice cube absorbs the heat, and partially melts.

Related Questions

me need need help on this math

Answers

the math?you need to insert a picture

Please help I’ll mark your brainlist!

Answers

Answer:

D f(x) = 4X - 3

Step-by-step explanation:

If you substitute the numbers of the table into the equation it works out, for example

2 x 4 = 8 - 3 = 5

3 x 4 = 12 - 3 = 9

4 x 4 = 16 - 3 = 13

Write an equation in point-slope form of the line that passes
through the given points.
2,-2). (5.7)

Answers

Answer:

Step-by-step explanation:

(7 + 2)/(5 - 2)= 9/3= 3

y + 2 = 3(x - 2)

y + 2 = 3x - 6

y = 3x - 8

Please help!

Betty paid $300 for 5 toy planes. What is the rate per toy plane? (multiple choice)

a. $305 per toy plane

b. $295 per toy plane

c. $1,500 per toy plane

d. $60 per toy plane

Answers

Answer:

The answer is D, $60 per toy plane.

Answer:

d.) 60$

Step-by-step explanation:

You divide 300$ by 5 and you get 60 dollars per toy plane

There are 10 girls and 5 boys in a classroom. Of
these students, 6 girls and 3 boys are wearing pink
What percentage of the students are wearing
pink?

Answers

Answer:

60%

Step-by-step explanation:

If there's 9 people wearing pink out of 15 then your answers 60%

identify the diameter of Q given that a= 169 pie in2

Answers

Answer:

the diameter will be D=26 in.

Step-by-step explanation:

The area of a circle is given by:

[tex]A=\pi R^{2}[/tex] (1)

Where:

A is the areaR is the radius of the circle

Now, we know that A = 169 π in²

So, we just need to use equation 1 to find R.

[tex]169\pi = \pi R^{2}[/tex]

[tex]R=\sqrt{169}[/tex]

[tex]R=13 \: in[/tex]

Therefore, the diameter will be D=2*R=26 in.

I hope it helps you!

The diameter of the circle is 26 inches

The area of the circle is given as:

[tex]A = 169\pi[/tex]

The area of a circle is calculated as:

[tex]A = \pi r^2[/tex]

By comparison, we have:

[tex]\pi r^2 = 169\pi[/tex]

Divide both sides of the equation by pi

[tex]r^2 = 169[/tex]

Take the positive square roots of both sides

[tex]r = 13[/tex]

Answer:

-55

Step-by-step explanation:

If this answer helped you then please consider making this brainliest and thank this response :)

Answer:

The answer is -4

Step-by-step explanation:

PLEASE ANSWER, URGENT!!!!

Answers

Answer:

a)57,600 b)12.5% increase

Step-by-step explanation:

Answer:

Step-by-step explanation:

Find the quotient:
2x² – 9x - 5
x-5
10)
Type answer here

Answers

Answer: 2x+1

Step-by-step explanation:

which of the following could be points on the unit circle?

Answers

Answer:

Step-by-step explanation:

In each case, square the coordinates of the point and determine whether or not the sum of these squares is 1:

A) 4/9 + 5/9 = 9/9 YES

B) 1 + 1 = 2 NO

C) 3/4 + 1/9 Not equal to 1. NO

D) 0.64 + 0.36 = 1.00 YES

HENCE OPTION B(1,1) IS CORRECT

What is unit circle?

A unit circle is a circle with a radius of one, as defined by mathematics. The unit circle is a circle of radius 1 centered at the origin (0, 0) in the Cartesian coordinate system in the Euclidean plane, which is used frequently in trigonometry.

How to solve?

Clearly from the given options (1,1 ) will lie on the circle , Hence option b (1,1) is correct .

Learn more about unit circle https://brainly.com/question/23989157

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Alex is trying to save $230 to buy a new tablet. Right now, he has $40 and can save $38 a week from
his allowance. Write and solve an inequality that can be used to find the minimum number of weeks it
will take Alex to have the money to buy the tablet. Write a sentence to interpret your solution.

Answers

Answer:

Step-by-step explanation:

So we know that Alex is trying to save $230.

He already has forty dollars so we can take forty away from two hundred and thirty. This leaves us with $190 that we need to save.

If he is saving $38 per week. We can divide or estimate and multiply. I prefer to multiply so that is the method I will use right now.

38×5= 190

Therefore, Alex will have enough money to buy a tablet in five weeks.

I hope I am correct and I explained this in a way that you can understand and do it yourself next time.

~~LampteyJ~~

Max sells lemonade for $3 per cup and candy for $2 per bar. He earns $450 selling lemonade and candy. If Max sold 90 bars of candy, how many cups of lemonade did he sell?

Answers

found this sheet, hope it helps !!

Please help 30 extra points

Select only the rational numbers
3/4
6
0.863
1.5
103

Answers

Everything is rational

Answer:

the rational numbers are 6, 3/4, 1.5, 103, 0.863 so all of them.

Step-by-step explanation:

Any number that can be written, numbers like 2.3373648489 with no pattern or rationality are not rational.

However number like 2.3333 are rational because you can predict the pattern.

A line is parallel to y=4x-2 and intersects the point (5,-11)

Answers

what’s the question?

Can anyone help me plz????

Answers

Step-by-step explanation: 2 x 4 ² - 2x + 10

2 x 4 = 8

8 x 8 = 64

64 - 2x + 10

64 - 2 x 4 + 10

64 - 8 + 10

56 + 10 = 66

I need help only on 15

Answers

Answer:

4=24

Step-by-step explanation:

because 18/3 is 6 and so is 30/5=6 so we now know that the rate of change is 6

Answer:

okay. :))

Step-by-step explanation:

on number 15, your answer is 24. this is becasue 3(6)=18 and 5(6)=30, and so you plug in 6 and multiply it by 4, which is 24. hope this helped, good luck!

Solve 4t(t - 5) - 2t(3t + 2) + 108 = 3t(2t - 5) -t (8t - 3) .

Answers

Answer:

the answer is t=9

Step-by-step explanation:

hoped I helped:)

Answer:

t = 9

Step-by-step explanation:

6 is what percent of 9?

Answers

Answer:

33 1/3 %

Step-by-step explanation:

6/9 = 1/3 = 33 1/3 %

Hope that helps!

The 6 is approximately 66.67% of 9.

To calculate what percent 6 is of 9, we can use the following formula:

Percent = (Part / Whole) * 100

In this case, 6 is the part and 9 is the whole. Substituting these values into the formula:

Percent = (6 / 9) * 100

To simplify, we divide 6 by 9:

Percent = (2 / 3) * 100

Multiplying 2/3 by 100:

Percent = (2 * 100) / 3

Percent = 200 / 3

To express the result as a decimal:

Percent ≈ 66.67

Therefore, 6 is approximately 66.67% of 9.

To know more about Percent:

https://brainly.com/question/31323953

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PLS I NEED HELP I ONLY HAVE 15 MINS I BEG YOU PLEASE!! :(
In 1984 the average American used to eat 55.7 pounds of chicken. This was 2.8 pounds more than the 1982 average. By what percent did chicken consumption increase from 1982 to 1984?

Answers

To solve this, we need to use the z statistic. The formula for z score is:

z = (x – u) / s

where x is sample value = less than 90, u is the sample mean = 90.6, s is the standard deviation = 17.2

z = (90 – 90.6) / 17.2

z = -0.035

From the standard distribution tables:

P (z = -0.035) = 0.4860

Therefore there is about 48.60 % chance that it will be less than 90 pounds

can someone help ill give brainliest

Answers

Answer:

D.) an investment with 12% compounded interest over 1 year.

❤ I hope this helps you, kind stranger! ❤

30 x 20 in standard form

Answers

30 x 20 is

......... 600.

Answer:

600

Step-by-step explanation:

C.) 7units im gay im gay 69430

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