How is energy involved in physical change??

Answers

Answer 1

Answer:during phase chages

Step-by-step explanation:

During phase changes, energy changes are usually involved. For example, when solid dry ice vaporizes (physical change), carbon dioxide molecules absorb energy. When liquid water becomes ice, energy is released. Remember that all chemical reactions involve a change in the bonds of the reactants


Related Questions

Congruent angles have _______________ supplements.
Fill in the blank

Answers

Answer:

congruent

Step-by-step explanation:

Answer:

congruent

Step-by-step explanation:

what is 35.6 multiplied by 4.9.

Answers

Answer:

Step-by-step explanation:

35.6×4.9

=174.44

Answer is 174.44

Answer:

174.44

Step-by-step explanation:

35.6 x 4.9 = 174.44

  356 (take away decimal)

x    49 (take away decimal)

17,444

Don't think 17,444 is our final answer. We still have to add the decimal places. Since there was two decimals in both numbers, we add two decimals places. So:

17,444 turns into 174.44

Final Answer:

174.44

Hopefully this helps! Sorry if wrong. You are loved, and you are beautiful/handsome!

-Bee

7. A number cube is labeled 1 through 6. The probability of randomly
rolling a 5 is . What is the probability of not rolling a 5?

Answers

Answer:

5/6

Step-by-step explanation:

6/6-1/6=5/6

Answer:

5/6

Step-by-step explanation:

M/-4 less than or greater than 2

Answers

Answer:

-4 is less than 2

-4<2

Step-by-step explanation:

Negatives are smaller than positive numbers.

Less than




Step by step equation

What is 2 8 10 +(−3.5) in decimal form? Show your work

Answers

Answer:

2806.5

Step-by-step explanation:

Mark me as brainliest

it's 2806.5 because i multiplied

What is one-half divided by one-eight?
Please use fractions
I'll give brainliest if it's right and you show ur work

Answers

Answer: 4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

1/8 -> 1 x 8 > 2 x 1 = 8/2

1/4 -> 4 x 2 > 1 x 2 = 4/1 = 4

I need help with this. Someone told me that the answer was 52 but idk how to explain how I got it. Can you please help me out. THANK YOU SO MUCH IF YOU DO!

Part A: James bought a cake that weighs 3 and 1 over 4 pounds. How many ounces does the cake weigh? Show your work. (5 points)

[16 ounces = 1 pound]

Answers

Answer:

3 pound cake=48 ounces)4 pound cake=64 ounces

Step-by-step explanation:

[16 ounces = 1 pound]-so you got this

James bought a cake that weighed over 4 pounds.

And one that is 3 pounds,so you wanna multiply 16 x 3 and you get 48

So that leaves the 3 pound cake to be 48 ounces

Just like the first one,you wanna multiply 16 x 4 and you get 64

It is 52 because:
16 oz. are in every 1 lb., so we multiply
3 x 16 which gives you 48.
Adding the 1/4, 1/4 of 16 is 4, so add 4 to 48.
There’s your answer, hope I helped!

This graph represents a linear relationship between x and y. Which equation best represents the relationship shown in this graph?
A: y=34/x
B: y=4/3x
C:y=−3/4x
D:y=−4/3x

Answers

It is A for sure lemme know it u need anything else:D
It is A I think hope it work .

The Spring Middle School gym used to hold 350 people. Now, they are only able to hold 200 people. By what percent did the seating in the gym change? (round your percent to the tenths place)

Answers

Answer:

mekekekekeeiwjkwkwiw99 9hebsbwbe

Answer:

43%

Step-by-step explanation:

Find What is the decrease percentage for 350 to 200?

Step by step workout

step 1 Address the formula, input parameters & values

Formula :

Difference

Initial Value

x 100 = Percent Decrease (%)

Initial Value X = 350 & New Value Y = 200

Decrease = (X - Y)

(350 - 200)

350

x 100 = ?

step 2 Apply the values in the percentage decrease {(X - Y)/X x 100} formula

=(350 - 200)

350

x 100

=150

350

x 100

= 42.8571%

(350 - 200)

350

x 100 = 42.8571%

The percentage reduction can be written as 57.1429% of 350.

42.8571 percent decrease (%↓) or reduction from 350 is 200.

If you round it you get 43%

Hope this helps.

The sum of three decimals.
23.56 2.56 2.5892.

Step by step I need to show my work.

Answers

Answer:

28.7092

Step-by-step explanation:

2.5892 + 23.5600 = 26.1492

26.1492 = 28.7092

Answer:

28.7092

Step-by-step explanation:

Line up the decimals,

23.56

 2.56

+2.5892

________

Add normally like you would from right to leftbring the decimal straight down and you will get the answer

HELP PLEASE!! MATH! USA TEST PREP HELP!!!

Answers

I am sorry but I cannot see the text on your screen if you could zoom in it would really help. : )

Answer:

b

Step-by-step explanation:

because each number is the same amount apart but the others dont

20 POINTS
A Tour of Washington, D.C. Parallel Lines and Transversal
(if anyone can find the actual answer that would be greatly appreciated)

Answers

Answer:

I am so sorry but I need pts...

Step-by-step explanation:

Answer: Can you add a picture or give the full question?

Step-by-step explanation: i don’t understand the question.

{0,1,-3}
---------------------------
-3 -2 -1 0 1

0n the number line.

Answers

Answer:Whats the question?

Ya what’s the question

A bag contains 6 one-dollar coins and 4 two-dollar coins. Three coins are taken at random without replacement.

a Draw a simplified tree diagram to show the sample space.
b Find the probability that the coins were taken out are the same.
c What is the probability you will have exactly $3?
d What is the probability you will have exactly $6?
e. What is the probability you will have exactly $5?

Answers

The answer is b why because I had did it on the test and I had got it right HOPEFULLY IT HELPS

Relationship B has a lesser rate than Relationship A. Does this graph represent Relationship A. What table could represent Relationship B?

{Time (weeks) 3 6 8 10
{ Plant growth (in.) 4.8 9.6 12.8 16

{Time (weeks) 3 4 6 9
{Plant growth (in.) 6.3 8.4 12.6 18.9

{Time (weeks) 3 6 8 10
{Plant growth (in.) 2.25 4.5 6 7.5

{Time (weeks) 3 4 6 9
{ Plant growth (in.) 5.4 7.2 10.8 16.2

The first-quadrant graph showing a ray from the origin through the points begin ordered pair 2 comma 3 ends ordered pair and begin ordered pair 4 comma 6 end ordered pair. The horizontal axis label is Time in weeks. The vertical axis label is Plant growth in inches.

Answers

Answer:

The answer it’s 77

Answer:

the answer im pretty sure is A. (weeks) 3 6 8 10    (in) 4.8 9.6 12.8 16

Step-by-step explanation:

Triangle ABC is dilated to produce triangle A ' B ' C' with scale factor of 3/4. Which describes the relationship between the two triangles?

A - Triangle A ‘ B ‘ C’ is an enlargement of triangle ABC

B - Triangle A ‘ B ‘ C’ is a reduction of triangle ABC

C - Triangle A ‘ B ‘ C’ is congruent to triangle ABC

D - Triangle A ‘ B ‘ C’ is a mirror image of triangle ABC

Please answer this question correctly. Please

Answers

B. Triangle A’B’C is a reduction of triangle ABC.

Explanation: Since the scale factor is smaller then one it would be a reduction.
Maybe B?........................

Rewrite the absolute value function y=|x|-3 as two linear functions, one that has the domain x<0, and one that has the domain x≥0.

Answers

seems the answer has been figured out

Two linear functions, one that has the domain x < 0 is y = - x - 3

And, one that has the domain x ≥ 0 is y = x + 3.

What is linear expression?

A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.

We have to given that;

The absolute value function is,

⇒ y = |x| - 3

So, The linear function which has the domain x < 0 is,

⇒ y = - x - 3

And,  The linear function which has the domain x ≥ 0 is,

⇒ y = x - 3

Learn more about the linear function visit:

https://brainly.com/question/2408815

#SPJ2

how do you find the y-intercept from a table and from a graph?

Answers

Answer:

When Finding the Y-Intercept from a Graph and Table, you are searching for the point of intersection between the equation and the y-axis. When finding the Y-Intercept from a Graph, you should find where the line from the equation crosses the y-axis. The point where the equation crosses the y-axis is the Y-Intercept.

Step-by-step explanation:

6.39E-26 in scientific notation please help

Answers

6.39 * 10^-26
I believe that’s the answer

Answer:

I'm so sorry I just need points :) bjsdbhdjfhedf8biehuj3

Step-by-step explanation:

Thanks

PLEASE HELP!!!!!!!!!!!!!!!!!

Answers

Answer:

The photo isn't clear repeat it again

Help! Question on khan academy! pls explain

Answers

Answer:

He will have 10.

Step-by-step explanation:

this is an example of the counting principle.

when you add the numbers of a probability, it will give you the amount you need.

4 + 3 + 3 = 10. hope this helped! branliest plz.

Answer:36
3x4x3
It says combination usually when it says combination it means to multiply.

A scale of 1:25 was used to create a drawing of an object. How would you find the actual length that corresponds with a given scale length?
A.)Multiply the scale length by 1/25.
B.)Multiply the scale length by 25.
C.)Divide the scale length by 1/2.5 .
D.)Divide the scale length by 25.

Answers

Answer:

B) Multiply scale length by 25!

Step-by-step explanation:

1 : 25

1 * 25 = 25

25 :25

25 = 25

Consider Brainliest! Hope this helped!

What are the classifications for the triangles in problems 1 and 2?

Answers

Answer:

1. Right Triangle

2. Iscoles Triangle

Step-by-step explanation:

Plz name me the brainliest thank u

The shaded area of the picture shows what part of the yard Rashon mowed in 15 minutes. He wonders how long it will take him to mow the whole yard.

How long will it take Rashon to mow the entire yard?


30 mins.




60 mins.



90 mins.

180 mins.

Answers

Answer:60

Step-by-step explanation:

60 because I’m big brain

n an inequality, 0.5 is the greater number. What will the position of the other number be in relation to 0.5 on the vertical number line?

Answers

Answer:

Step-by-step explanation:

It is equal because they both are the same

Answer:

The other number would be located below 0.5 on the vertical number line.

Step-by-step explanation:

Hoped This helped!

The population of Austin, Texas in 1980 was 346,000 people. The population in 1990 was 472,000 people. What is the rate of change of the population with respect to the year for this function?

Answers

Answer:

12.6 thousand a year

Step-by-step explanation:

take the 346 add 126 thousand to it equaling a good 472 thousand divide 126 thousand by 10 cause it is a ten year span that equals you get 12.6 thousand.

I need brainliest please

We want to find the rate of change of the population of Austin, Texas in the years between 1980 and 1990.

The answer is: r = 12,600 people/year.

We will assume that this increase in population is modeled with a linear equation, remember that a general linear equation is:

y = a*x + b

Where the rate of change, or slope, is a.

We know that if a line passes through two points (x₁, y₁) and (x₂, y₂) the slope is given by the formula:

[tex]a = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

For this case we have two points, these are:

(1980, 346,000)

(1990, 472,000)

Then the slope or rate of change is just:

[tex]a = \frac{472,000 - 346,000}{1990 - 1980} = 12,600[/tex]

To be complete we need to add the correspondent units, which are people per year.

Then the rate of change is:

r = 12,600 people/year.

If you want to learn more, you can read:

https://brainly.com/question/18904995

The body of a 154-pound person contains approximately 2×102 milligrams of gold and 6×103 milligrams of aluminum. Based on this information, the number of milligrams of aluminum in the body is how many times greater than the number of milligrams of gold in the body?

can you show your work too?

Answers

Answer:

2 x 1 0^2 and  6 x 10^

Step-by-step explanation:

Hope I helped

Brainliest plz :)

An arithmetic sequence has a first term of 8 and sixth term of 38. What is the 50th term of this sequence?

Answers

Answer:

74

Step-by-step explanation:

Can someone help me please

Answers

Answer:

The slope is  [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

If you graph out the points on a line, you can clearly see that the rise between the points on the graph is 2, while the run is 4. This would give you [tex]\frac{2}{4}[/tex], so if you simplify the fraction, you would get [tex]\frac{1}{2}[/tex].

help im not good with fractions!!!

Randy has 2/3 of a bag of candy left. He has 3 friends he wants to give his leftovers to. If he splits the remaining 2/3 of a bag among his 3 friends equally, what part of the bag will each friend get?

Answers

2/9 because I know that’s it

Answer:

2 please follow me fast and vote me

Step-by-step explanation:

2/3*3

= 6/3

= 2

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