The magnitude of the electrical force acting between a 2.4 × 10–8 c charge and a 1.8 × 10–6 c charge that are separated by 0.008 m is n, rounded to the tenths place.

Answers

Answer 1

The magnitude of the electrical force acting between both the given charges which are separated by 0.008 m is 6.07 N.

Given Charges 2.4*[tex]10^{-8} C[/tex] and 1.8 *[tex]10^{-6} C[/tex] that are separated by 0.008 m.

We have to find the magnitude of the electrical force acting between the charges. Magnitude is the property which determines the size of an object or process. Force is an influence that can change the direction of an object.

To find the magnitude we have to use Coulomb's law which says that

[tex]F_{E}=K*(q_{1}*q_{2}/d^{2}[/tex]

where K is Coulomb's constant whose value is [tex]8.9910^{9}Nm^{2} C^{2}[/tex].

[tex]q_{1}[/tex]=[tex]2.6*10^{-8} C[/tex] and

[tex]q_{2}=1.8*10^{-6} C[/tex] are the electric charges.

d=0.008m is the separation distance between the charges.

Putting  the values in the given formula we get:

[tex]F_{E} =8.99(10)^{9}Nm^{2}/C^{2} *(2.4(10)^{-8}C(1.8(10)^{-6}C)/(0.008m)^{2}[/tex]

=6.07 N

Hence the magnitude of force acting between [tex]2.4*10^{-8} C[/tex] and [tex]1.8*10^{-6}C[/tex] is 6.07 N.

Learn more about force at https://brainly.com/question/12970081

#SPJ4

Answer 2

Answer:

6.1

Step-by-step explanation:


Related Questions

Please help quickly if you can ! :)

Answers

Answer:

y=49x

Step-by-step explanation:

As you can see from the graph, the distance from home increases by 49 miles per hour driven.

Therefore the distance driven for any given time in hours is 49x

Therefore y = 49x

Which statement is not true about the data shown by the box plot below?

a.The range is 67.
b. The data point 5 lies outside the range of the data.
c. Three fourths of the data is less than 68.
d. Half the data lies between 51 and 68.

Answers

based on the options given, one thing that isn't true of the box plot is that d. Half the data lies between 51 and 68.

what is false about the box plot?

the box plot has a range of 67:

= 90 - 23

= 67

the data point 5 lies outside the data set.

3/4 of the data is less than 68 which is the 3rd quartile.

this means that the false statement is that half of the data is between 57 and 68.

find out more on box plots at https://brainly.com/question/14277132.

#SPJ1

Taseem’s loose change consists of dimes and quarters. When you ask her how many of each type of coin she has, she gives you the following clues: 0.1x+0.25y=19.9 and x+y=100 What can you conclude? Select all that apply.

Answers

The statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

0.1x + 0.25y = 19.9 and

x + y = 100

Let x = number of dimes

y = number of quarters

After solving the above system of equations by substitution method.

[tex]\rm \dfrac{398-5y}{2}+y=100[/tex]

y = 66

[tex]\rm x=\dfrac{398-5\cdot \:66}{2}[/tex]

x = 34

Thus, the statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

What is the asymptote of the function g(x) = 5•2^3x + 4 shown on the graph?

A: y=4
B: y=5
C: y=0
D: y = 3

Answers

y=4

Hope this helps :)

What is the answer to the question down below

Answers

The equation which could be used to find the value of x is; (x+10) +(x-6) = 10.

Which equation can best be used to find the value of x?

According to the task content, it follows that the lines WX and WY both amount to the line XY which joins points X and Y.

Hence, it follows that the equation which can be used to find the value of x is; (x+10) +(x-6) = 10.

Read more on equations;

https://brainly.com/question/2972832

#SPJ1

What is the approximate total length of iron edging needed to create the square frame and the two diagonals? 43.5 inches 50.9 inches 54.0 inches 61.5 inches

Answers

Total length of iron edging needed to create the square frame is 43.5 inches

Important properties of square:

All four interior angles are equal to 90°

All four sides of the square are congruent or equal to each other.

The opposite sides of the square are parallel to each other.

The diagonals of the square bisect each other at 90°

The two diagonals of the square are equal to each other.

Diagonal of square = [tex]\sqrt{2}[/tex]a

9 = [tex]\sqrt{2}[/tex]a

a = [tex]\frac{9}{\sqrt{2}}[/tex]

a = 6.36 inches

Iron edging needed to create the square frame = 4*6.36 = 25.44 inches

iron edging needed to create two diagonals = 2*9 = 18 inches

total length = 18 + 25.44

                   = 43.44 ~ 43.5 inches

Thus, Total length required is 43.5 inches

To learn more about Lengths visit:

https://brainly.com/question/1476578

#SPJ4

please help please and thank you

Answers

Answer:

B or the second option

Step-by-step explanation:

We can label the diagram parts A-E to fully represent the situation in the question.

A: Julie's ascent up the mountain (moving/increasing)

B: Julie drinking hot chocolate (stationary/constant)

C: Julie's descent down the mountain (moving/decreasing)

D:  Julie rests (stationary/constant)

E:  Julie's final descent down the mountain (moving/decreasing)

32.For the following exercises, given each set of information, find a linear equation satisfying the conditions, if possible.
32. (2, 4) and (4, 10)

Answers

Answer:

The required linear equation satisfying the given points (2,4) and (4,10) is y=3x-2

Step-by-step explanation:

Two points are given in question, (2,4) and (4,10).

It is required to find out a linear equation satisfying the points (2,4) and (4,10).

To find it out, find the slope of a line passing through these two given points. Then consider one of the points to give the linear equation of the line in the

[tex]$$\left(y-y_{2}\right)=m\left(x-x_{2}\right)$$[/tex]

Step 1 of 3

The slope of a line passing through the points (2,4) and (4,10) is given by

[tex]$$\begin{aligned}m &=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\m &=\frac{10-4}{4-2} \\m &=\frac{6}{2} \\m &=3\end{aligned}$$[/tex]

Step 2 of 3

Now use the slope m=3 and use one of the two given points and write the equation in point-slope form:

[tex]$$\left(y-y_{2}\right)=m\left(x-x_{2}\right)$$\\ $$(y-4)=3(x-2)$$[/tex]

Distribute 3 ,

[tex]$$\begin{aligned}&y-4=3 x-3 \times 2 \\&y-4=3 x-6\end{aligned}$$[/tex]

Step 3 of 3

This linear function can be written in the slope-intercept form by adding 4 on both sides,

[tex]$$\begin{aligned}&y-4+4=3 x-6+4 \\&y=3 x-2\end{aligned}$$[/tex]

So, this is the required linear equation.

On a coordinate plane, parallelogram A B C D, parallelogram A prime B prime C prime D prime, and parallelogram A double prime, B double prime, C double prime, D double prime are on the graph.
In the pre-image of the parallelogram, the slope of AD is −3 and the slope of BC is −3. The image is translated down 7 units and then reflected over the y−axis.

The slope of A"D" is
.

The slope of B"C" is
.

What can you determine about the line segments A"D" and B"C"?

Answers

Using translation concepts, we have that:

The slope of A"D" is of 3.The slope of B"C" is 3.The lines are parallel.

What is a translation?

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

When the function is translated down, the slope remains constant, while when the function is reflected over the y-axis, the slope is multiplied by -1, hence both lines will have a slope of 3, and since they have the same slope, they are parallel.

More can be learned about translation concepts at https://brainly.com/question/4521517

#SPJ1

which coordinate pair is a solution of the linear equation below -3x+4y=19

Answers

The coordinate pair that is a solution of the linear equation -3x+4y=19 is (0, 19)

How to determine the ordered pair?

The linear equation is given as:

-3x + 4y= 19

Set x = 0

So, we have:

-3(0) + 4y = 19

Evaluate

4y = 19

Divide by 4

y = 19/4

Hence, the coordinate pair that is a solution of the linear equation -3x+4y=19 is (0, 19)

Read more about linear equations at:

https://brainly.com/question/14323743

#SPJ1

Write an expression for cotA

Answers

Answer:

[tex]cotA=\frac{2x}{5}[/tex]

Step-by-step explanation:

Answer:

[tex]\text{cotA} =\frac{2x}{5}[/tex]

Step-by-step explanation:

cotA = (Adjacent side) ÷ (Opposite side)

The measure of the Adjacent side = 2x

The measure of the Opposite side = 5

Then

[tex]\text{cotA} =\frac{2x}{5}[/tex]

How is the relationship between the length and area of the rectangle different from other kinds of relationships we've seen before ?

Answers

The area of a rectangle = Length × Breadth

The area of a rectangle is the product of the breadth and length of a rectangle. A = L * W, where A is the area, L is the length, W is the width or breadth.We must determine the product of a rectangle's length and breadth in order to get its area.Area of a rectangle is equal to length times width.For instance, if a rectangle has a length of 50 cm and a width of 7 cm, its area is equal to 350 square cm (50 × 7 square cm).Every angle of a rectangle measures 90°. Opposite sides are equal and parallel. It has 2 diagonals of equal length.

Learn more about Rectangle

brainly.com/question/14546734

#SPJ4

Question is in the picture, please help me out!!

Answers

The arithmetic sequences are as follow:

What is Arithmetic Sequence?

An arithmetic sequence in algebra is a sequence of numbers where the difference between every two consecutive terms is the same.

1) t(n) = 5n + 4

t(1) = 9, t(2) = 14, t(3) = 19

So,

9,14,19,...

d= 14-9 = 5

d= 19-14 =5

Hence, it is an AP

2) 1, 2, 4, 8 , 16

Hence, it is not an AP

3) 3, 6, 9 ,...

It is an AP

4)It is given that it is an AP

5) tn =  2*3^n

 t1= 6, t2= 18, t3= 54

So, 6, 18, 54,...

Hence, it is not an AP

6) 3 , 1, 1/3,...

It is not an AP

7) t(n+1)= 6*t(n)

t(1) = -1

t(2)=-6

t(3)= -36

Hence, it is not an AP

8) -3, 1, 5, 9

Hence, it is an AP.

9) 1, 4, 9,...

Hence, it not an AP

10) 2,1,0,1,2,...

It is not an AP

11) t(n)= -2n-5

t(1)= -7, t(2)= -9, t(3)= -11

Hence, it is an AP

12) tn= (1/2)^n

 t1= 1/2, t2= 1/4, t3= 1/8

It is not an AP

Learn more about AP here:

https://brainly.com/question/24873057

#SPJ1

What is the L.C.M of: 6(a+b)+3

Answers

Answer:

I hope this is the right answer

Mason and Laney run laps. The ratio of the number of laps Mason ran to the number Laney ran was 2:3.
If Laney ran 930 meters, how far did Mason run? Draw a tape diagram to determine how you fou your answer.

Answers

Using proportions, it is found that Mason ran 620 meters.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Considering the ratio, the rule of three is given as follows:

2 laps for Mason - 3 laps for Laney.

n meters for Mason - 930 meters for Mason.

Applying cross multiplication:

3n = 930 x 2

n = 930 x 2/3

n = 620

Mason ran 620 meters.

More can be learned about proportions at https://brainly.com/question/24372153

#SPJ1

in triangle abc and triangle def angle a=angle d and angle b= angle e and ab=ef. will the 2 triangles be congruent ? justify your answer

Answers

Answer:

Step-by-step explanation:

no, you don't have the measure of at least one side, so having the same angles is similar but not congruent

I need help pls WILL GIVE BRAINLIEST

Answers

Answer: (3,-2)

Step-by-step explanation:

[tex]-3x-7y=5\\15x+6y=33[/tex]

[tex]5(-3x-7y)=5(5)\\-15x-35y=25[/tex]

new system:

[tex]-15x-35y=25\\15x+6y=33[/tex]

add.

[tex]-29y=58\\y=-2[/tex]

plug in -2 for y

[tex]-3x-7(-2)=5\\-3x+14=5\\-3x=-9\\x=3[/tex]

system:

[tex](3,-2)[/tex]

Answer:

(3, - 2 )

Step-by-step explanation:

- 3x - 7y = 5 → (1)

15x + 6y = 33 → (2)

multiplying (1) by 5 and adding to (2) will eliminate x

- 15x - 35y = 25 → (3)

add (2) and (3) term by term to eliminate x

0 - 29y = 58

- 29y = 58 ( divide both sides by - 29 )

y = - 2

substitute y = - 2 into either of the 2 equations and solve for x

substituting into (2)

15x + 6(- 2) = 33

15x - 12 = 33 ( add 12 to both sides )

15x = 45 ( divide both sides by 15 )

x = 3

solution is (3, - 2 )

Use the properties of 30-60-90 and 45-45-90 triangles to solve for x in each of the problems below. Then decode the secret message by matching the answer with the corresponding letter/symbol from the exercises.

Answers

The trigonometric function gives the ratio of different sides of a right-angle triangle. The given problems can be solved as given below.

What are Trigonometric functions?

The trigonometric function gives the ratio of different sides of a right-angle triangle.

[tex]\rm Sin \theta=\dfrac{Perpendicular}{Hypotenuse}\\\\\\Cos \theta=\dfrac{Base}{Hypotenuse}\\\\\\Tan \theta=\dfrac{Perpendicular}{Base}\\\\\\Cosec \theta=\dfrac{Hypotenuse}{Perpendicular}\\\\\\Sec \theta=\dfrac{Hypotenuse}{Base}\\\\\\Cot \theta=\dfrac{Base}{Perpendicular}\\\\\\[/tex]

where perpendicular is the side of the triangle which is opposite to the angle, and the hypotenuse is the longest side of the triangle which is opposite to the 90° angle.

1st.) x = 5 /Sin(30°)

x = 10

!) sin(45°) = 4/x

x = 4/sin(45°)

x = 4√2

I) Cos(45°) = √3 / x

x = √3 / Cos(45°)

x = √6

E) Tan(60°) = 3√3 / x

x = 3√3 / 3

W) For isosceles right-triangle, the angle made by the legs and the hypotenuse is always 45°.

x = 45°

N) x² + x² = (7√2)²

x = 7

V) Tan(60°) = 7 / x

x = 7√3/3

K) x² + x² = (9)²

x = 9/√2

Y) Sin(60°) = 7√3/x

x = 14

M) Sin(30°) = x/11

x = 11/2

T) Sin(45°) = x/√10

x = √5

A) x + 2x + 90° = 180°

x = 30°

O) Sin(45°) = √2 / x

x = 2

R) Tan(30°) = x / 4

x = 4/√3 = 4√3 / 3

S) Sin(60°) = x / (10/3)

x = 5√3 / 3

Learn more about Trigonometric functions:

https://brainly.com/question/6904750

#SPJ1

Cual es el resultado de f(x)=−7x−1

Answers

The function of the linear equation shows that the slope(m) = -7, the x-intercepts is (-1/7,0), and the y-intercepts is (0,-1)

What is the function of f(x) of a linear equation?

The function of a linear equation takes the form y = ax + b. In this situation, the values of y can be determined when x = 0, and the values of x can be determined when y = 0

From the given information:

y = f(x) = -7x - 1

We can determine the:

Slope (m)x-intercepts, andy-intercepts.

y = -7x - 1

Slope (m) = -7

Set the values of y = 0 to determine the x-intercepts.

0 = -7x - 1

7x = - 1

x = -1/7

x-intercepts = (-1/7, 0)

Set the values of x = 0 to find the y-intercepts.

y = -7(0) - 1

y = - 1

y-intercepts = (-1, 0)

Learn more about the function of a linear equation here:

https://brainly.com/question/15602982

#SPJ1

A rectangular tank has its width exactly half its length. That the height of the tank is 3M and the length is 8m. What is the volume of the tank in M3?

Answers

Answer:

Volume = 96m^3

Step-by-step explanation:

If the length of the tank is 8 meters, then the width must be 4 meters, because the question said the width was half the length. Since the height, 3 meters, was also given, we can find the volume.

Vol = L × w × h

We multiply together the length, width and height.

Vol = 8 × 4 × 3

= 96

The volume is 96 meters^3

please help how do i this?​

Answers

The order of the numbers from the greatest to the least is

|-20| > |12.3| > |8| > |-6| > |-4| > |2 3/10|

Magnitude of numbers

From the question, we are to order the given numbers from the greatest to the least in magnitude

The given numbers are

|-20|, |-4|, |-6|, |8|, |2 3/10|, |12.3|

Since the modulo sign is included, the negative signs do not take effect.

Hence, the order of the numbers from the greatest to the least is

|-20| > |12.3| > |8| > |-6| > |-4| > |2 3/10|

Lear more on Magnitude of numbers here: https://brainly.com/question/11114137

#SPJ1

The sum of two numbers is 79. Three times the first number added to 5 times the second number is 283. What are the two numbers?

Answers

Answer:

The two numbers are 56 and 23.

Step-by-step explanation:

Let the two numbers be A and B.

We are told that:

A+B = 79, and

2)  3A + 5B = 283

Rearrange the first expression to isolate A:

A = 79-B

Now use this value of B in the second expression:

3A + 5B = 283

3(79-B) + 5B = 283

237-3B + 5B = 283

2B = 46

B = 23

If B=23, we can find A from (1):  

A+B = 79

A+23 = 79

A = 56

CHECK:

Does A+B = 79?

56 + 23 = 79?  YES

Does 3A + 5B = 283?

  3(56) + 5(23) = 283?

 168 + 115 = 283?  YES

is 7.666 a rational number

Answers

Answer:

Yes, it's a rational number

Step-by-step explanation:

A cheerleading team plans to sell t-shirts as a fundraiser. The team's
goal is to make a profit of at least $1248. The profit on each t-shirt sold
is $6.50. The team's goal is written as the inequality shown below.
6.50t ≥1248 where t=number of t-shirts sold
Which graph represents the solution to this inequality?

Answers

Answer:

You didn't include any choices.....see below

Step-by-step explanation:

what is the value of x and y

Answers

Answer:

x = 15° , y = 125°

I hope this helps u

(3x+10)+(8x+5)=180 ( corresponding angle, TR//PA )
11x+15=180
x=(180-15)/11
= 15
(3x+10)+5y=180 ( corresponding angle, TP//RA )
sub x=15
3(15)+10+5y=180
55+5y=180
y=(180-55)/5
=25

Therefore, x=15 y=25

Help please I'll mark you as brainlist if the answer is correct

if (x + q) is a factor of two polynomials x2 + px + q and x2 + mx + n, then prove that a = n-q m-p​

Answers

Answer:

factor polynomial is x+q so x=-q

putting the value of x in both equations

eqn 1)a^2+p(-a)+q=0

a^2 -ap+q=0

eqn 2)a^2+m(-a)+n=0

a^2-am+n=0

Since both are equal to zero,we can write:

a^2-ap+q=a^2-am+n

-ap+am=n-q

a(-p+m)=n-q

a=(n-q)/(m-p)

Explanation:

Since (x + a) is a factor of the two polynomials, when x = -a, the polynomials should both equal 0 (this is known as the factor theorem).

First equation:

[tex]x^{2} + px + q[/tex]

When x = -a:

[tex](-a)^{2} + p(-a) + q = 0\\\\a^{2} -pa + q = 0[/tex]

Second equation:

[tex]x^{2} + mx + n[/tex]

When x = -a:

[tex](-a)^{2} + m(-a) + n = 0\\\\a^{2} -ma + n = 0[/tex]

• As both equations equal 0, we can equate them:

[tex]a^{2} -pa + q = a^{2} -ma + n \\\\-pa + ma = n - q\\\\a(m - p) =n -q\\\\a = (n - q)/ (m - n)[/tex][proven]

very hard problem someone help

Answers

Answer:

Everything in the box currently is correct but the bottom two numbers are just -3 and -4

Step-by-step explanation:

Simplify
50(x^2+7x+6)

Answers

Distribute [tex]50[/tex] to every term inside the parentheses.

[tex]50\cdotx^2+50\cdot7x+50\cdot6[/tex]

Simplify with multiplication.

[tex]\huge\boxed{50^2+350x+300}[/tex]

You can't simplify further by adding, so leave the answer as-is.

Answer:

50x^2 + 350x + 300

Step-by-step explanation:

Original Equation:

50(x^2+7x+6)

Distribute 50 to all 3 #'s:

50x^2 + 350x + 300

Write a proof
given: angle 1 and angle 3 are supplementary
prove: m is parallel to n

Answers

ABCDEDJGHIKLMNOP

sorry just wanted to see if the bold thing works

Bryan is asked to write an inequality to represent the graph.

A number line going from negative 16 to negative 10. An open circle is at negative 14. Everything to the right of the circle is shaded.
He writes Negative 14 less-than-or-equal-to x.

Which error did Bryan make?
Bryan must write the inequality with the variable on the left side of the relation symbol.
Bryan chose a relation symbol that does not point in the same direction as the ray.
Bryan included –14 in his solution set.
Bryan used the wrong number in his inequality.

Answers

The error that Bryan has done in this inequality is that he included –14 in his solution set.

How to point out the mistake made

What Bryan has to do would be to write this inequality in such a way that the variable would appear on the left.

But the symbol that he has chosen does not move in this same direction as the graph.

The -14 should not be inclusive in the graph because it is not a part of the graph solution.

He used the wrong number in this inequality.

Read more on inequalities here:

https://brainly.com/question/24372553

#SPJ1

Answer:

its c

Step-by-step explanation:

on edge

Other Questions
we can tell that side DE is parallel to side....A) ABB) We can't be sure it's parallel to any side Using the Addition Method, solve for x in the following system of linear equations.2y + x = 4y - 3x = 2a.) x = 1b.) x = 2c.) x = 8d.) x = 0 Qu sabe usted y a quin conoce?B. El restaurante El CanalCompleta el dilogo con la forma correcta de los verbos entre parntesis.MARCO ANTIONIO: (T: Saber) dnde est el restaurante El Canal?JAVIER: Cmo no! Ceci y yo (conocer) muy bien a los dueos.MARCO ANTIONIO: Yo (conocer) a su hija Luca, pero no (saber) la direccin del restaurante. Luca dice que sus padres (saber) cocinar mejor que nadie.JAVIER: Ceci (saber) su nmero de telfono si quieres llamar. Debes(conocer) a toda la familia. Todos son muy simpticos. How were Homer's poems passed down?A. Word of mouthB. Carved stone tabletsC. Wood carvingsD. Scrolls made of papyrus Simplify (-8ab) (3ab). a) -24a7b b) -5a7b c) -5a26 d) -24a26 Josh is 72 inches tall. Ruben is 9/10 as tall as josh. John is 11/12 tall as ruben. a. what is rubens height in inches b. what fractional of of joshs height is johns? Cheryl is responsible for cybersecurity at a mid-sized insurance company. She has decided to use a different vendor for a network antimalware than she uses for host antimalware. Is this a recommended action, why or why not What the speech-thought differential? a. the difference between how fast you think and how fast the speaker talks b. the personal worries that distract your attention during a speech c. the disparity between the listener's ideas and the speaker's d. the amount of time you spend in a departure from the communication line e. the difference between your nonverbal feedback and your actual reaction to a speech Dawit hobbies include jogging ,swimming,an A to climb mountains c to climbB c;limb mountains D climbing "-3pq^2+q^3" if p=2.9 and q=-1.3 What is the range of the averages in this class? histogram group of answer choices 65 points 80 points 30 points none of the above in the case Roe v. Wade, the Supreme Court ruled the state laws were protected by federal laws Or protected by the ninth amendment Violated the right to privacy Violated the second amendment 1. A man with hemophilia (a recessive, sex-linked condition) has a daughter withouthemophilia who marres a man without hemophilia. What is the probability of theirdaughter having hemophilia? Their son? If they have four sons, that all will be affected? Suppose a 30-year fixed-rate mortgage loan was issued at a nominal interest rate of 5.5% when the expected inflation rate was 2.5%. Eight years later, the actual inflation rate was 4%. After eight years, the real interest rate was _____ and _____ benefited from the actual inflation rate being higher than expected. What is the solution to the system of equations? "-6x2/5y=8" 1/2x+3y=29(10, 2)(10, 2)(2, 10)(2, 10) A bus travels from Boston to New York 220 miles. The bus departs at 2pm and arrives at new York at 7pm. what's the average speed? Consider u = 5, 2 and v = 10, 4. what is the relationship between u and v? 1. Taking your eyes off the road for ____ seconds at 60 miles per hour means you have traveled blindly for half the length of a football field. How much energy is needed to melt 230 g of ammonia (NH3)? (Heat of fusion is 5.66 kJ/mol)Give your answer in units of kJ with correct significant figures. According to the principles of supply and demand, why is it that as the price of a product increases, the amount supplied will also increase?