Water has a specific heat of 4.184 J/g°C and requires 23,000 J of heat to raise the
temperature 68° C. What is the mass of the water?

Answers

Answer 1

Answer:

[tex]m=80.840 kg[/tex]

Step-by-step explanation:

Given Data,

Q=23000 J

c=4.184 J/g °c

Δt= 68 °c

m=?

By using this equation,

Q=mcΔt

[tex]23000=m\times 4.184\times 68\\\\m=\frac{23000}{4.184\times68} \\\\\\m=80.840 kg[/tex]


Related Questions

In a basketball game, Jacob gets 4/9 of the rebounds and Adam gets 3/8 of the rebounds for their team. What fraction of the rebounds did the rest of the team get?

Answers

Answer:

The fraction of the rebounds the rest of the team get was 13/72 (13 out of the 72 total)

Step-by-step explanation:

Jacob gets 4/9

Adam gets 3/8

Since the given fraction provided doesn't have common denominator we would need to do thos first...

4/9 x 8/8 = 32/72

3/8 x 9/9 = 27/72

combining Adam and Jacob rebounds...

32/72 + 27/72 = 59/72

so the remaining, uncounted rebounds are...

72 - 59 = 13

(64 / 8 + 2 - 10) + (9 x 9 + 19) = 2 points 100 90 99

Answers

Answer:

Answer is 100

Step-by-step explanation:

(64/8+2-10) + (81+19)

(8+2-10) + (81+19)

(10-10) + (100)

(0) + (100)

0+100

100

Do not send a link file things like that please just answer the question

Picture has everything in it

Answers

Answer:

1/125

Step-by-step explanation:

5^3 is 125. 5^6 is 15625. It is divisible by 125. So it is 1/125

A binomial experiment is performed a fixed number of times. Each repetition of the experimental is called a

Answers

Answer:

It's called a Trial

Step-by-step explanation:

The Experiment is performed a fixed number of times. Each repetition of the experiment is called a trial.

Imad and Amra are butterflies. Imad drinks 3 grams of nectar a week. Amra drinks 2 grams of nectar a week. How many grams of nectar do they drink all together after 4 weeks?

Answers

Answer:

20 grams

Step-by-step explanation:

3+2=5 grams for 1 week

5x4=20

Maribel was approved for a 7-year private student loan at 6.8% to cover her college costs of $10,900. (Round monthly payment calculations to 2 decimal places.)

Answers

Using it's formula, it is found that her monthly payment for the loan will be of $163.45.

What is the monthly payment formula?

It is given by:

[tex]A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}[/tex]

In which:

P is the initial amount.r is the interest rate.n is the number of payments.

In this problem, the parameters are given as follows:

P = 10900, r = 0.068, n = 7 x 12 = 84.

Hence:

r/12 = 0.068/12 = 0.005667.

Hence the monthly payment will be given by:

[tex]A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}[/tex]

[tex]A = 10900\frac{0.005667(1 + 0.005667)^{84}}{(1 + 0.005667)^{84} - 1}[/tex]

A = 163.45.

More can be learned about the monthly payment formula at https://brainly.com/question/22846480

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An amusement park issued a coupon to increase the number of visitors to the park each week. The function below represents the number of visitors at the amusement park x weeks after the issuance of the coupon. V(x) = 500(1.2)x What is the approximate average rate of change over the interval [2, 6]? A. 129 visitors per week B. 249 visitors per week C. 180 visitors per week D. 193 visitors per week

Answers

Answer:

the answer to  this question is "D"

have a awesome day

1 × 10^ − 4 ) + ( 2 × 10^ − 2 )

Answers

Answer:

[tex]2.01 *10^{-2}[/tex]

Step-by-step explanation:

this is the correct answer

Identify the maximum or minimum value, domain, and range of the graph of the quadratic function.

Answers

Answer:

See below ~

Step-by-step explanation:

Details of the graph

Maximum = 4 [highest value past which no values are part of the graph]Domain : all real numbers [graph is vertical, so it will be all possible real numbers]Range : y ≤ 4 [all y values are less than or equal to 4 according to the graph]

Baby Caden wants to arrange 11 blocks in a row. How many different arrangements can he make?​

Answers

Answer:  39,916,800

Explanation:

Start with 11, and count down until you reach 1. Multiply everything along the way.

11*10*9*8*7*6*5*4*3*2*1 = 39,916,800

Or a shortcut would be to say

11! = 39,916,800

The exclamation mark means factorial. It tells the calculator to follow the instructions mentioned above.

The number 39,916,800 is a little over 39.9 million, or you could say it's a bit smaller than 40 million.

Write the equation of the circle graphed below.

Answers

Answer:

Your equation is [tex](x - 1)^2 + (y +1)^2 = (\frac{1}{2} )^2[/tex]

Step-by-step explanation:

Well, the center origin of the circle is given (h,k) =  (1,-1).

We have to find our radius as they gave us a point. from origin to the edge of the circle.

Using the formula: (x - h)^2 + (y - k)^2 = r^2

Plug in our (h,k) = (1,-1) and (x,y) =  (0.5,-1) to solve for radius.

(x - h)^2 + (y - k)^2 = r^2

(0.5 - (1))^2 + (-1 - (-1))^2 = r^2

(-0.5)^2 + (0)^2 = r^2

1/4= r^2

r^2 = 1/4

r = 1/2

The difference betneen x ond 4, where 4 is greater than x​

Answers

The difference between x and 4 is greater than 10.

This can be written as,

x - 4 > 10

Why?

✓ We use the operation of subtraction since the terms used is difference. Difference is the result when you subtract numbers.

✓ The symbol for greater than is >. Therefore, you'll have x - 4 > 10 as an answer.

Which oylinders have the same volume as the cylinder below? Cheok all that apply, height- 20m and base- 32m:

Answers

Answer:

Picture 3: A cylinder with height of 8 meters and diameter of 40 meters.

Picture 5: A cylinder with height of 128 meters and diameter of 10 meters.

Step-by-step explanation:

-------------------------------------------------------------------------------------------------------------

Given:

Which Cylinders have the same volume as the cylinder below? Cheok all that apply, height- 20m and base- 32m:

Answer choices:    

picture 1: 40m  and 16

picture 2: 5m  and 64

picture 3: 40m and 8

picture 4: 32m and 20

picture 5: 10m and 128

Formula for Cylinders:

V=Bh or V=πr²h

-------------------------------------------------------------------------------------------------------------

Diameter = Half of Radius {Divide by 2}

Original Cylinder:

20m and 32m

20/2 = 10

V=πr2h=π·102·32≈10053.09649

V ≈ 10053.1

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Picture 1: 40m  and 16

40/2 = 20

V=πr2h=π·202·16≈20106.19298

V ≈20106.19

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

picture 2: 5m  and 64

5/2 = 2.5

V=πr2h=π·2.52·64≈1256.63706

V ≈1256.64

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

picture 3: 40m and 8

40/2 = 20

V=πr2h=π·202·8≈10053.09649

V≈10053.1

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

picture 4: 32m and 20

32/2 = 16

V=πr2h=π·162·20≈16084.95439

V≈16084.95

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

picture 5: 10m and 128

10/2 = 5

V=πr2h=π·52·128≈10053.09649

V≈10053.1

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

After solving each answer choices the answers are:

picture 3: 40m  and 8

picture 5: 10m and 128

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Kavinsky

Select the correct answer.
What is the approximate solution to this equation?
15(3)2+ = 90
=
2log
a = log3
O
210g3
t = log 6
O
log 6
210g3
=
log3
2log 6

Answers

Answer:

C) [tex]x=\frac{\log(6)}{2\log(3)}[/tex]

Step-by-step explanation:

[tex]15(3)^{2x}=90\\\\3^{2x}=6\\\\2x=\log_3(6)\\\\2x=\frac{\log(6)}{\log(3)}\\\\x=\frac{\log(6)}{2\log(3)}[/tex]

Remember to use the change of base formula, which states that [tex]\log_a(b)=\frac{\log(b)}{\log(a)}[/tex] so that everything has the same base of 10

9,110,000 in word form

Answers

nine million, one hundred ten thousand

Answer:

Nine million and one hundered ten thousand

Let f(x) = 3x + 8 and g(x) = x^2 Find (f.g)(x).​

Answers

Answer:

3x^2 +8

Step-by-step explanation:

f.g(x) = f(x^2) = 3(x^2) + 8 = 3x^2 +8

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 90% confident that you estimate is within 4% of the true population proportion. How large of a sample size is required

Answers

Answer:

n  = 400

Step-by-step explanation:

The formula for the error in our estimate is given by:Standard Error :  √ ( p(1-p)/ n)Error =  SE = Zα/2   √ ( p(1-p)/ n)  where Zα/2= critical  value for 95% confidence level = 1.96and we know our error is 3.5 %But we do not the sample proportion p. Then what we can do is give an estimate of p in the absence of any other information.In this case we will use p= 0.5 which is the value that maximizes the expression for the standard error :if p = 0.8 then SE= 0.040  p = 0.3 then SE =0.036  p = 0.1 then  SE = 0.030  p = 0.5 then SE = 0.050Substituting3.5/100  = 1.96 x  √ (( 0.5 x 0.5 ) /n )3.5/ (100 x 1.96 x 0.5 ) = 1/ √n0.0357 = 1 /√n n = 20²

April and Sanjay are both using tools to simulate the probability that a family with three children will have exactly one girl. April is using a coin, with tails up representing a boy and heads up representing a girl. She flipped the coin three times. Sanjay rolled a number cube three times with odd numbers representing a boy and even numbers representing a girl. Which statement best describes their simulations? Both simulations have the same theoretical probability of a 3-child family having exactly one girl, but their experimental probabilities may differ. The simulations have different theoretical probabilities of a 3-child family having exactly one girl, and the experimental probabilities they generate may differ. The simulations have different theoretical probabilities of a 3-child family having exactly one girl, but their experimental probabilities will be the same. Both simulations have the same theoretical probability of a 3-child family having exactly one girl, and their experimental probabilities will be the same.

Answers

Based on the type of tools that April and Sanjay used, The simulations have different theoretical probabilities of a 3-child family having exactly one girl, and the experimental probabilities they generate may differ.

What will April and Sanjay's simulations lead to?

They will have different theoretical probabilities on a single girl being had based on the fact that different instruments were used.

There is also a chance that their experimental probabilities may differ when the experiment is repeated several times because the instruments used will show random and unrelated outcomes.

Find out more on experimental probability at https://brainly.com/question/8652467.

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An isosceles trapezoid with bottom base 26.5 decimeters, top base 8.5 decimeters, and height 9 decimeters. Find the area. a. 238.5 dm2 c. 157.5 dm2 b. 257.5 dm2 d. 315 dm2 Please select the best answer from the choices provided A B C

Answers

Answer:

the answers c 157.5

Step-by-step explanation:

on edg 2022

The area of given isosceles trapezoid is c. 157.5 decimeters².

What is an area of a trapezoid?

The area of a trapezoid is = (1/2*sum of the two parallel sides *height). The area is the sum of the areas of all its faces.The areas of the base, top, and lateral surfaces i.e all sides of the object. It is measured using different area formulas and measured in square units and then adding all the areas. The surface area of a solid object is a measure of the total area that the surface of the object covers.

⇒ (1/2*sum of the two parallel sides *height)

  ⇒ 1/2*(26.5+8.5)*9

 ⇒ 157.5  decimeters².

Learn more about the area here:-https://brainly.com/question/25292087

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jasmine has a collection of 80 seashells of all the seashells in her collection 35 percent of them are white how man of jasmines seashells are white

Answers

Answer:

28% is your awnser

Step-by-step explanation:

um If you look up what is 35 percent of 80 you will get your awnser

Brainliest to the correct answer, but answer ASAP
ONLY answer if you are 100% sure so don't say "I think" or "It might be"

Answers

Answer:

B

Step-by-step explanation:

[tex] \frac{25}{8} = 3.125[/tex]

π = C/d = 25/8 = 3.125

Find the volume of this shape

Answers

Answer:

141.37

Step-by-step explanation:

[tex]v =\pi \: r {}^{2}h = \pi \times 3 {}^{2} \times 5 = 141.37[/tex]

solve for absolute value: 3(r+1)+2>-7

Answers

Answer:

[tex]\huge\boxed{\bf\:r > -4 }[/tex]

Step-by-step explanation:

[tex]3(r+1)+2 > -7[/tex]

Use the distributive property to solve 3 (r + 1).

[tex]3r+3+2 > -7 \\3r + 5 > -7[/tex]

Now, bring 5 to the right hand side of the inequality .

[tex]3r > -7-5 \\3r > -12[/tex]

Divide both sides of the inequality by 3.

[tex]r > \frac{-12}{3} \\\boxed{\bf\:r > -4 }[/tex]

[tex]\rule{150pt}{2pt}[/tex]

c(d), when c = 7 and d= 34?

Answers

Answer:

[tex]238[/tex]

Step-by-step explanation:

Step 1:  Input the values and solve

c(d) just basically means c * d

If we just multiply 7 (for c) and 34 (for d) we get 238 which is our answer.

Answer: [tex]238[/tex]

Answer:

238

Step-by-step explanation:

c(d), when c = 7 and d= 34

7 * 34

= 238

Simplify the expression 3(7x).
help

Answers

Answer:

21x

Step-by-step explanation:

7x is one term. With parenthesis, you have to multiply whatever is on the outside, inside. So that's 3*7x, or 21x.

Hope this helps!

Hey there!

3(7x)

= 3 * 7x

= 7x * 3

= 7x + 7x + 7x

= 14x + 7x

= 21x


Therefore, the answer should be: 21x


Good luck on your assignment & enjoy your day!



~Amphitrite1040:)

Find the size of the angle marked a and b on the diagram

Answers

Answer:

Step-by-step explanation:

we know that the total angles around the big triangle are 180° so,  we know the right angle is 90° and we are told that one of the angles is 52° so just find the last angle by

180 = 90 + 52 + X

180 - 90 - 52 = X

38 = X

b = 38°

a = 52°

Answer:

a = 52°b = 38°

Step-by-step explanation:

We know:

Angles in a triangle sum to 180°.

Therefore:

52° + 90° + b = 180°

142° + b = 180°    |-142°

b = 38°

(look at the picture)

a + b = 90° ⇒ a + 38° = 90°   |-38°

a = 52°

or

Angles 52° and a, are alternate interior angles. Therefore they are congruent.

a = 52°

3a = 12 I need to solve the equation and check my solution

Answers

Answer:

a=4.

Step-by-step explanation:

Divide 3 on both sides. a=4

Consider the
equation
S=Ut+ 2gt²

Answers

The formula s= ut + 1/2gt^2

Represents the total distance "s" travelled by an object in time "t" which has an initial speed of "u" and is accelerating at the uniform rate of "g". It is customary to use the symbol "g" for acceleration due to gravity. However this equation is valid for any value of uniform acceleration.

We can derive the equation as follows.

The total distance travelled by a uniformly accelerating object is equal to average speed multiplied by time

That is: s = (average speed)*t ... (1)

And, average speed = (initial speed + final speed at the end of period t)/2

And final speed = u + gt

Therefore: Average speed = (u + u + gt) = 2u + gt

Substituting this value of average speed in equation (1) we get:

s = (2u + gt)/2]*t = ut +1/2gt^2

hope it helps...!!!

Find the volume of this rectangular pyramid.
Be sure to include the correct unit in your answer.
6 m
7 m
9 m

Answers

Answer:

378 M -small 3 that goes on on top right side of the M.

Step-by-step explanation:

you multiply the 6m x 7m x 9m = 378 m to the 3rd power

Hi: Everyone!
How's everyone doing?
[tex]12x = 5 + 5 - 5[/tex]

Answers

Answer:

x= 5 / 12

Step-by-step explanation:

Simplify both sides of the equation.

12x=5+5−5

12x=5+5+−5

12x=(5+5+−5) (Combine Like Terms)

12x=5

12x=5

Step 2: Divide both sides by 12.

12x / 12

x = 5 / 12

12x = 5 + 5 - 5

12x = 10 - 5

12x = 5

[tex]x \: = \frac{12}{5} [/tex]

[tex]{\pink{answer ={\blue{\boxed{x \: = {\purple{ \frac{12}{5} }}}}}}}[/tex]

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