Mathematics High School

7. If 294 J of heat is transferred to a 10.0 g sample of silver at 25 ºC, what is the
final temperature of the silver? Specific heat capacity of silver is 0.235 J/gºC.

Answers

Answer 1

Answer:

T~final is 150.11 C

Step-by-step explanation:

To solve this we need this specific heat equation:

Q=mc(T~final - T~initial) that is the difference of final temperature minus initial temperature.

We are given:

Q = 294 J

m = 10 g

c = 0.235 J/gC

T~initial = 25 C

Plug the values in to the equation

294 J = 10 g * 0.235 J/gC * T(difference)

294 J = 2.35 J/C * T(difference)

Divide both sides by 2.35 J/C

294 J / 2.35 J/C = T(difference)

T(difference) = 125.11 C

If the initial temperature was 25 C then then

T~final = 25 C + 125.11 C or 150.11 C

Related Questions

What are some negative numbers and some positive numbers

Answers

Answer:

negative:-7, -8, -9

positive: 8,4,6

Step-by-step explanation:

Answer:

5 and -5

Step-by-step explanation:

you could use a number line and make it go two ways from 0, any number to the left is negative, any numbers right are positive.

Joe claims that 1/4 is of a figure is less than 1/8 of the same figure. Which statement is true?

Answers

Answer:

I disagree with joe.

Step-by-step explanation:

1/8 of a figure is smaller than 1/4. 2/8 of a figure is the same thing as 1/4 though.

HELP I NEED HELP ASAP

Answers

Answer:

i think is B hope it helped sos if its wrong

Step-by-step explanation:

express 0.42 as a fraction.

A. 42.1

B. 42/1

C. 100/42

D. 42/100 ​

Answers

Answer:

42/100

Step-by-step explanation:

42/100 because the .42 is in the hundredths place is the denominator of the fraction is 100

What is the value of v? Show work or explain

Answers

Answer:

v = 105°

Step-by-step explanation:

According to Angle Sum Property of a triangle ,

Sum of measure of all the 3 interior angles of the triangle 180°.

Now , lets use this property in this question . So,

[tex]36 + (v - 27) + (v - 39) = 180[/tex]

[tex] = > 2v - 66 + 36= 180[/tex]

[tex] = > 2v - 30 = 180[/tex]

[tex] = > 2v = 180 + 30 = 210[/tex]

[tex] = > v = \frac{210}{2} = 105[/tex]

what is the inverse of y =8^x

Answers

Answer:

[tex]f^-1(x)=\frac{ln(x)}{ln(8)}[/tex]

pls help 12 points asap

Answers

Answer:

circle: a sphere, cone, or a cylinder as 3d

What is -7 to the 4 power in expanded form?

Answers

Answer:

-7 x -7 x -7 x -7

Step-by-step explanation:

To the fourth power mean times itself four times

8g - 5g =24.

(For a test)

Answers

Answer:

8g-5g=24.

We move all terms to the left:

8g-5g-(24.)=0

We add all the numbers together, and all the variables

8g-5g-24=0

We add all the numbers together, and all the variables

3g-24=0

We move all terms containing g to the left, all other terms to the right

3g=24

g=24/3

g=8

   

Step-by-step explanation:

Answer:

Step-by-step explanation:

8g-5g=24

8-5=3

3g=24

3g/3=24/3

g=8

Solve each equation.


2x=52x=5

answer asap plz

Answers

Answer:

The correct answer for this problem is 55

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

Answers

Answer:

NO SOLUTION, cannot be graphed

Step-by-step explanation:

brainliest please

Answer: no solution

because that solution cant be graphed

Step-by-step explanation:

how do I simply 4/6
​

Answers

They can both be divided by 2, so you would divide 4 by 2 which is 2 and then 6 by 2 which is 3. it simplifies to 2/3

Answer:

Your Answer Is 2/3

Step-by-step explanation:

First you have to find what number are both divisible by, in this case 2.

Next you divide: 4÷2=2 and 6÷2=3

Since 4 was your numerator you put 2 on the top and Since 6 was the denominator you put 3 on the bottom.

The numerator of a fraction is 6. Which of the following could be the denominator of the fraction so that it is already in lowest terms? А 9 B 12 C 15 D 18 E 19​

Answers

Answer:

19, because it wouldn't be close to becoming a whole.

Step-by-step explanation:

asap! super urgent! help me outtt :'(

Answers

Answer:

3/47

Step-by-step explanation:

of the 47 total cars, 3 of them are a beige SUV

The correct answer is A, 3/47

You look for the cases where the vehicle is a beige car and an suv, there is three of them. You then divide by the total number of vehicles to find the probability of a beige suv.

Hope this helps your studies.

Kaityln saves $35 in 50 days. Her sister saves $15 in 20 days. Determine who is
saving at a higher rate.

Answers

Uwuajjjjjjjjakdirnbdbdbeuiwjendjd

Four students received the following grades on their math quizzes. Which student could use the mode to show that she is doing better than the other three students?

Ashlee 70, 94, 90, 70, 94,
Belen 79, 79, 100, 95, 99,
Molly 66, 73, 98, 88, 98,
Sofia 88, 94, 96, 99, 80
Please answer right away.

Answers

Answer:

I guess Sofia is doing better than the other three students

Answer:Molly

Step-by-step explanation:

Molly can use her mode to show that she is doing better than the other three students.

Ashlee’s mode is 94, Belen’s mode is 79, Molly’s is 98, and Sofia doesn’t have a mode. The highest is Molly, so she should use her mode to show she is doing better.

I'll give brainliest if correct/Maria, Jose, and Trey sent a total of 124 text messages over their cell phones during the weekend. Jose sent 3 times as many messages as Trey. Trey sent 9 fewer messages than Maria. How many messages did they each send?​

Answers

Answer:

Maria sent 32 messages

Jose sent 69 messages

and Tray sent 23 messages

Step-by-step explanation:

m = Maria

j = Jose

t = Trey

m+j+t = 124

j = 3t

t+9 = m $\Rightarrow$ t = m - 9

By substituting the value of t (third equation) into the second equation, we get:

j = 3(m - 9) = 3m - 27.

Finally, by sticking in the values of j, and t we just found out into the first equation, we get:

m + (3m - 27) + (m - 9) = 124

4m - 27 + m - 9 = 124

5m - 36 = 124

5m = 160

m = 32.

So, j = 69,

and t = 23.

URGENT WILL GIVE 10 PTS!!!!!!!!!!!!!

How do you find surface area and what is the formula for it?

Answers

Answer:

Surface Area is found by adding the areas of all the faces of the shape.

Step-by-step explanation:

Surface Area =2lengthwidth+2lengthheight+2heightwidth


25 seats in his classroom and 25 students. He wants to know how many seatting arrangements there are. How would you solve
this

Answers

He needs to have 5 rows of 5 seats if there will be 25 people because 5 x 5 = 25


Find the output, y, when the input, x, is 7 Y=

Answers

Answer:

y = 4

Step-by-step explanation:

Locate x = 7 on the x- axis, go vertically up to meet the graph at (7, 4 )

Then when x = 7, y = 4

Answer:

According to the above graphical figure it is found that,

When the input value of x is 7, output value of y is 4.

Location on the graph → (7,4).

y=4 is the right answer.

I NEED HELP PLEASESEESEESSES

Answers

Answer:

67

Step-by-step explanation:

because u add

help help help help help help help help

Answers

Answer:

[tex]x^{2} +5x[/tex]

Step-by-step explanation:

A = length x width

l = x + 5

w = x

A = x(x + 5)

[tex]A=x^{2} +5x[/tex]

if you complete it and it's correct I give you (brainlist)​help

Answers

Answer:

1. 9

2. 122cm squared

3. 189m

4. 30

5. b

Step-by-step explanation:

1. 27,36,45,54,63,72,81,90,99

2. 12x6=72 10x5=50 50+72=122

3. 21x9=189

4. 5x12=60 60/2=30

5  b because 150 divided by 4 doesn't give you a whole number.

What is the area of the triangle?

Answers

the area of the triangle is 12.72unit

In 3 days, the temperature dropped 27 degrees.how many degrees per day did the temperature drop

Answers

Answer: The Temperature dropped 0.111 per day

Step-by-step explanation:

[tex]\frac{3 days}{27 degrees }[/tex]

3 divided by 27 = 0.111

Answer:

Answer: The Temperature dropped 0.111 per day

Step-by-step explanation:

3 divided by 27 = 0.111

Pls help I’m being timed

Answers

I believe it’s B and not c

If BE = 2x + 2, BD = 5x – 3, and AE = 4x – 6. What is AC?

Answers

Answer:

AC=44

Step-by-step explanation:

The value of AC is 12 unit.

What is parallelogram?

A special form of quadrilateral called a parallelogram has both pairs of its opposite sides parallel and equal.

Given:

ABCD is a parallelogram.

And  BE = 2x + 2, BD = 5x – 3, and AE = 4x – 6.

The two diagonals bisect each other.

AC = AE + EC

AC = 2AE

AC = 8x-12

The diagonals of a parallelogram are equal.

So,

BD = AC

5x+3 = 8x-12

x = 3

So, AC = 12

Therefore, the AC is 12 unit.

To learn more about the parallelogram;

https://brainly.com/question/29133107

#SPJ6

What is the volume of the composite figure. I said 36 but it is wrong.

Answers

Answer:

108

Step-by-step explanation:

You are correct for stating one tissue box has a volume for 36.

But notice there are 3 tissue boxes, so in order to find the total volume, you should add them up.

36+36+36=108

Answer:

6*3*2=36 there are 3 boxes so 36*3=108

Step-by-step explanation:

Sam manages a clothing boutique and has an annual salary of $23600. Doug works in a shoe store and is paid 9.40/h each week. Who has the higher gross income each month?

Answers

Answer:

Sam earns more money than Doug in an year

Step-by-step explanation:

The complete question is -

Sam manages a clothing boutique and has an annual salary of $23600. Doug works in a shoe store and is paid 9.40/h for 40 hours each week. Who has the higher gross income each month?

Solution -

Sum of money (in dollars) earned by Doug in one week is equal to

[tex]= 9.40 *40\\= 376[/tex]

Sum of money (in dollars) earned by Doug in one year is equal to

[tex]= 376 * 52 \\= 19552[/tex]

Hence, Sam earns more money than Doug in an year


*
Which does NOT describe SLOPE?

unit rate
rate of change
"per"
initial value

Answers

Unit Rate is the correct answer, I know because it is the correct answer

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