determine the kinetic energy of 745-kg roller coaster car that is moving with a speed of 14.9 m/s

Answers

Answer 1

Answer:

≈82698.73 kg m²/s

Step-by-step explanation:

K.E.=1/2mv²=1/2×745×14.9²=82698.725 kg m²/s


Related Questions

Solve the question:
115/3.... The answer should be in decimals.

Answers

Answer:

38.3 recurring

Step-by-step explanation:

[tex]115 \ 3[/tex]

please please please help

Answers

Answer:

S: 1st quadrant

K:2nd quadrant

W:3rd quadrant

C: y-axis

Step-by-step explanation:

How many gallons of paint will you need to paint a bedroom that is 10 ft by 14 ft with walls that are 7 1/2 ft high? The walls will need two coats to cover the old paint.

How many gallons of paint are needed to paint the ceiling of the same room in the last question, one coat of paint will suffice.

Answers

you have two walls that are  10 by 7.5 so 75 feet ^2 in area each

you have another two walls that are 14 by 7.5  so 105 feet^ 2 each

so all of that together is 360 feet^2 to cover for one coating, so you have 720 feet^2 to cover for 2 coats on the walls. so take that and divide it by the area that one gallon would cover, then round up giving you how many gallons you would have to buy

for the ceiling you do the same, the area is 140 and you only need one coat

18,923,612 - 9,089,689

Answers

Answer:

9,833,923

Step-by-step explanation:

Subtract 9,089,689  from 18,923,612

will mark brainliest!! solve & simplify the following equation: 2x²-7x=4​

Answers

Answer:

x=  −1 /2   or x=4

Step-by-step explanation:

This is ALGEBRA, equations, factoring and zero property. ok.. let's solve this step-by-step

2x^2−7x=4

Step 1: Subtract 4 from both sides.

2x^2−7x−4 =4 −4

2x^2−7x−4=0

Step 2: Factor left side of equation.

(2x+1)(x−4)=0

Step 3: Set factors equal to 0.

2x+1=0 or x−4=0

x=  −1 /2   or x=4

(BTW, there are supposed to be two answers, it's factoring)

Sorry if the format is not clear, but I hope this helped (really feel you, algebra can be brain-striking)!! Please leave a comment, rating and/or mark as the brainliest-whichever you think I deserve! Thank You :)

If one of the short sides of a 45-45-90 triangle equals 5, how long is the hypotenuse?

Possible Answers:

√10

5

π

√15

5√2

Answers

Answer:

hypotenuse= 2[tex]\sqrt{5}[/tex]

Step-by-step explanation:

the triangle is equal tow side so it is two side =5 cm

then the hypotenuse by Phitagors theory the triangle hypotenuse =

[tex]\sqrt{5^{2} +5^{2} }[/tex] = 2[tex]\sqrt{5}[/tex]

What is the value of x in the equation 8x - 2y = 48, when y = 4?

Answers

8x-2(4)=48 Then, 8x-8=48 Then, 8x=56 Then X=7


The value of x in the equation is 7.

Answer:

x = 7

Step-by-step explanation:

8x - 2y = 48

Let y=4

8x - 2(4) = 48

8x -8 = 48

Add 8 to each side

8x -8+8 = 48+8

8x = 56

8x/8 = 56/8

x = 7

un granjero debe entregar 900 pacas de trigo. en uno de los camiones puede llevar 150 pacas y el otro 120. despues de dos viajes el camion de mayor capacidad se descompone, asi que para terminar el trabajo solo cuenta con el de menor capacidad ¿cuantos viajes hara hara con ese camion para cumplir con el pedido?

Answers

El granjero tendrá que dar 5 viajes con el camión de menor capacidad para cumplir con su pedido!

how can you add 8 to get the number 1000

Answers

Answer:

8+92=100

Step-by-step explanation:

You can get that by subtracting 8 from 100 :)

Answer:

if the number ur adding it to is 991 and u add 8 you will get 1,000

Step-by-step explanation:

Sophia just graduated from college and is living on her own. She only wants to
spend about ten percent of her net income on food. She earns a net income of
$2,450 each month. Last week, she tracked her food spending and found she
spends about $75 a week on groceries. Is she meeting the ten percent?

Answers

Answer:

Sophia's monthly spent on food is $300 while she wants to spend $245.

As her real monthly spent is greater than what she wants, she is not meeting the 10% criteria. In fact, she exceed her budget for month

Step-by-step explanation:

Net income of Sophia = $2,450

% of money she wants to spend on food = 10% of Net income of Sophia

thus,

Amount of money she wants to spend on food in $

           =  10% of $2,450

           = 10/100 * $2,450 = $245

Hence, Sophia wants to spend $245 in a month on food.

__________________________

it is given that last week she spent $75 on food

thus, weekly spent on food = $75

as there are 4 weeks in a months

money spent by her in 4 weeks = $75* 4 = $300

Thus, her monthly spent on food is $300 while she wants to spend $245.

As her real monthly spent is greater than what she wants, she is not meeting the 10% criteria. In fact, she exceed her budget for month

Can u guys help meeee?!!!!!?

Answers

Answer:

Area=57.75 m squared

Step-by-step explanation:

Area= L x W

Area= 11 x 5.25

Area=57.75 or 57 3/4

A chef combines 5 quarts of pineapple​ juice, 6 pints of​ milk, and 7 cups of apple juice to make smoothies. How many cups can be filled with​ smoothies? Explain.

Answers

Here you go. Hope this helps.

Help meh out please.

Answers

Answer:

Step-by-step explanation:

sry bro im confused

A​ city's mean minimum daily temperature in February is 22 degrees Upper F. Suppose the standard deviation of the minimum temperature in February is 6 degrees Upper F and that the distribution of minimum temperatures in February is approximately Normal. What percentage of days in February has minimum temperatures below freezing left parenthesis 32 degrees Upper F right parenthesis​?

Answers

Answer:

Probability that X <32 degrees

[tex]=P(Z<\frac{32-22}{6}) =P(Z<1.67)\\ = 0.9522[/tex]

Convert this into percent by multiplying by 100

95.22% of days in February has minimum temperatures below freezing (32 degrees Upper F )​

Step-by-step explanation:

Given that a city's mean minimum daily temperature in February is 22 degrees Upper F, with std deviation 6 degrees.

Let X be the minimum temperature in February

Then X is N(22,6)

To calculate  percentage of days in February has minimum temperatures below freezing (32 degrees Upper F )

Probability that X <32 degrees

[tex]=P(Z<\frac{32-22}{6}) =P(Z<1.67)\\ = 0.9522[/tex]

Convert this into percent by multiplying by 100

95.22% of days in February has minimum temperatures below freezing (32 degrees Upper F )​

Find the area of a circle with radius 6 m.
Use the value 3.14 for it, and do not round your answer.
Be sure to include the correct unit in your answer.

Answers

The right answer is 113.04m^2

please see the attached picture for full solution

Hope it helps

Jill drinks 3 glasses of milk each day

How many glasses of milk will Jill drink in 1 week ?

Answers

Answer:

21 glasses of milk

Step-by-step explanation:

7 days in 1 week

3 glasses of milk each day

7 * 3 = 21 glasses

Answer:

21

Step-by-step explanation:

3 glasses of milk every day times the days in a week, so 7 equals 21

7x3= 21

A basketball player's "hang time" is the amount of time the player remains suspended in the air after a jump. The height (in meters) of superstar Michael Jordan during a jump is shown in the graph below. Assume that hhh is the distance from the ground to the lowest part of his body at ttt seconds.. Complete the following sentences based on the graph of the function. Round your answers to the nearest tenth. This is the graph of a function. Michael Jordan's hang time is second(s). The maximum height is about meter(s) . For ttt between t=0.5t=0.5t, equals, 0, point, 5 and t=1t=1t, equals, 1, the height is .

Answers

Answer:

The graph is a nonlinear function. Michael Jordan's hang time is 0.9 seconds. The maximum height is about 1 meter. For t between t = 0.5 and t = 1, the height is decreasing.

Step-by-step explanation:

Okay the first one: It's nonlinear because its not a line, its a curve and its definitely not constant. The curve on the graph stops at (0.9,0) so his hangtime is 0.9 seconds. The peak of the curve is about 1 meter. Pretty self explanatory. And the last one, after the point 0.5, the height of the curve goes down, so it is decreasing.

Answer:

The graph is a nonlinear function

Michael Jordan's hang time is 0.9 seconds

The maximum height is about 1 meter

For t between t = 0.5 and t = 1, the height is decreasing.

Step-by-step explanation:

determine the range of the function graphed above

Answers

Answer: A

Step-by-step explanation:

The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain. In plain English, the definition means: The range is the resulting y-values we get after substituting all the possible x-values.

The possible values of y are [-infinity,4], so the answer is A

To complete a task in 16 days a company needs 5 people working 6 hors per day the company decides to have 8 people each working for 4 hours per day assuming that each person works at the same rate how many days will the task take to complete

Answers

Answer:X=15d or just 15

Step-by-step explanation:Since there is an increase in manpower/hours of: [8 x 4] / [6 x 5] = 16/15, therefore, there must be decrease in days by the same pecentage. Or 16 / [16 / 15] =16 x 15/16 =15 days

Answer:

15 days

Step-by-step explanation:

Or you could just write 15 on MathsWatch

Help me please I'm begging you i am marking brainiest, no one ever helps me with anything i am really struggling as a kid to move on to the next grade so please me me out with this problem please for i can force myself to keep going:

A student is doing a reading assignment. After 37 minutes of reading, she skims the pages ahead and estimates that she still has 55% of the reading to do. According to the girl's estimate, how long is the total reading assignment? Round to the nearest minute.

Answers

Answer:

82 minutes.

Step-by-step explanation:

So first calculate the percentage 37 minutes is. It is 45%

Next find how much 1% is.

Divide by 45.

[tex]\frac{37}{45}[/tex]

Multiply by 100 to find how much the whole time is: [tex]\frac{3700}{45}[/tex]

The decimal version is: 82.2222222222...

Which simplifies to 82 minutes.

Answer:

82 mins

Step-by-step explanation:

percentage of pages she has already read

100-55= 45%

45%----------- 37mins

55%------------ x mins

x =( 37× 55)/45

x= 45.22 mins

approximately x=45 mins

The time for reading assignment is 37mins + 45 mins = 82 mins.

What is the mission factor of
18y^3=(G)(2y^2)

Answers

g = 9y

this is true because khan academy

The missing factor of the given equation is 9y.

What is factor of the expression?

The factors of the expressions are the simplified expression which when multiplied results in the original expression.

Divide 18y³ by 2y² to determine the missing factor.

G=18y³/2y²

Express the numerator and denominator in the factored form and simplify.

G=(2·3·3·y·y·y)/(2·y·y)

G=3·3·y

G=9y

So, the missing factor of the given equation is 9y.

To learn more about factor click:

https://brainly.com/question/19386208

#SPJ3

A checkout clerk at a department store is expected to complete 16 transactions every hour. In the past 20 minutes, he completed 6 transactions. Choose True or False for each statement.

Answers

Answer:

False

Step-by-step explanation:

A checkout clerk at a department store is expected to complete 16 transactions every hour

I.e 16 transactions in 60 minutes

So if it's 6 transactions, let's check to know if the minutes Tally.

16 = 60

6 = (6*60)16

6 = 22.5 minutes

But in the statement it was 20 minutes, so the answer is false.

pleaseeeeee help with math. i’ve gotten no help today. explantion needed!!

Answers

Answer:

Exactly two distinct zeros

Step-by-step explanation:

y = 2(x-1) (x + 4)

Plug y = 0

0 = 2(x-1) (x + 4)

0/2 = (x-1) (x + 4)

(x-1) (x + 4) = 0

(x-1) = 0 or (x + 4)= 0

x = 1 or x = - 4

Here, x has two distinct roots, therefore given quadratic relation has Exactly two distinct zeros.

use what is in the parenthesis and make it equal zero. (x-1) means x is 1 because 1-1 is zero :)

Please answer correctly !!!!!! Will mark brainliest !!!!!!!!!!

Answers

Answer:

[tex]2a^2\sqrt{35a}[/tex]

Step-by-step explanation:

[tex]\sqrt{2a} .\sqrt{14a^3} .\sqrt{5a} \\=\sqrt{2a\times 14a^3\times 5a}\\=\sqrt{140a^5}\\=2a^2\sqrt{35a}\\[/tex]

A company pays each of its two office employees each Friday at the rate of $120 per day for a five-day week that begins on Monday. If the monthly accounting period ends on Tuesday and the employees worked on both Monday and Tuesday, the month-end adjusting entry to record the salaries earned but unpaid is:

Answers

Answer:

Debit Salaries Expense $480 and credit Salaries Payable $480

Step-by-step explanation:

Firstly, we will need to calculate the salary expense of the company on these two employees.

Mathematically, that would be

2 employees * 2 days * 120/employee/day = 2 * 2 * 120 = $480

Thus, the month-end adjusting entry to record the salaries earned but unpaid is that salaries expense will be debited $480 and salaries payable will be credited $480

complete the synthetic division problem below -3 1 2 -2 3

Answers

Answer:

Synthetic division is another way to divide a polynomial by the binomial x - c , where c is a constant.

Step 1: Set up the synthetic division. ...

Step 2: Bring down the leading coefficient to the bottom row.

Step 3: Multiply c by the value just written on the bottom row. ...

Step 4: Add the column created in step 3.

Step-by-step explanation:

hope this helps you :)

Answer:

x^2-x+1

Step-by-step explanation:

Hope that helps!!!

Hello, could you please help me with some ideas? This is the question:
List at least five idioms that you have come across in your own life, and indicate both the idiomatic and literal meanings of each of the expressions.

Answers

Answer:

1. Time is money

Meaning: Work faster or more efficiently

2. Don’t judge a book by its cover

Meaning: Not judging something by its initial appearance

3.Getting a second wind

Meaning: Having energy again after being tired or worn out

4.Don’t judge a book by its cover

Meaning: Not judging something by its initial appearance

5.To be on cloud nine

Meaning: To be extremely happy

These are the ones I use.

Answer:

Your on thin ice.

The pen is mightier than the sword.

Its raining cats and dogs.

If your going through hell keep on going face that fire, walk right though it. don't slow do.

Step-by-step explanation:

please help! thank you

Answers

Answer:

3rd, 4th, last

Step-by-step explanation:

according to a political polling firm, the probability of candidate a winning the Democratic primary is 60%. If she wins the Democratic primary, the probability of her winning the general election is 54%. What's the probability of her winning the Democratic primary and then general election?

Answers

Answer:

d) 32.4%

Step-by-step explanation:

p(chance of winning general election) = (chance of winning primary)x(chance of winning general) = 60% x 54% = 0.6 x 0.54 = 0.324 = 32.4%

What is the volume of a cone with radius 3.4 feet and altitude 4.8 feet?

Answers

Answer:

V≈58.11ft³

Step-by-step explanation:

that is the answer because you are trying to find the volume.

Other Questions
Since astronauts in orbit are apparently weightless, a clever method of measuring their masses is needed to monitor their mass gains or losses to adjust diets. One way to do this is to exert a known force on an astronaut and measure the acceleration produced. Suppose a net external force of magnitude 52.0 N is exerted and the magnitude of the astronaut's acceleration is measured to be 0.936 m/s2. Calculate her mass. For a given rectangle the length equal 3x + 2 and the width equal 5 what is the area of the rectangle A student timed his drive to work each day for three days. The times are shown below:20 minutes 22 minutes 18 minutes What was his mean time? What is the scale factor of the dilation?231/21/3 What has created a major shift in the methods used by graphic artists in recent times Who knows the answer to the picture? evaluate 3-14, when =5 help please? what is the following quotient? Nancy took a breath and gathered her thoughts. She imagined that passing through the gray-zone door into Level 4 was like a space walk, except that instead of going into outer space, you went into inner space, which was full of the pressure of life trying to get inside your suit. People went into Level 4 areas all the time at the Institute, particularly the civilian animal caretakers. But going into a containment zone to perform a necropsy on an animal that had died of an amplified unknown hot agent was something a little different. This was high-hazard work. The Hot Zone, Richard Preston What is the central idea of this excerpt from The Hot Zone? A. animal necropsies are done only by trained professionals. B. People go into Level 4 areas all the time at the Institute. C. Entering Level 4 is like going into inner space. D. Working in a containment zone is very dangerous. Find the value of a in the equation below 2sin(14a+20)=3 Which feature is commonly found in sonnets?A. Great variation in formB. Fourteen lines of iambic unitsC. An exciting story and a fast beatD. Deep praise of a specific subject Which of the following was not designed using computerized software? Some effective survey questions Which inequality is represented by this graph? Tu nas pas de cousins? Senator Roy Blunt of Missouri says, "Im philosophically opposed to the federal government taking over elections. It is a bad idea. Im pretty flexible about the amount of money, but Im not flexible about a federal takeover of the election process itself." Do you agree? Should the federal government require all states to provide vote-by-mail options or should it be a state-by-state decision? Using what you have learned in the lesson and gathered from your survey, write a conclusion paragraph analyzing your results in your conclusion. Be sure to address the following questions:- Identify the trait that you believe to be dominant for each of the features surveyed. Explain your reasoning. - It is possible that a recessive trait in a survey such as this one may have a greater total number than its dominant counterpart. Explain how that might happen in an investigation like this.- How might surveying a different number of people or different population of people possibly change the percentages you calculated? My data tables are in the picture. Find the center, radius, and intercepts of the circle given below and then sketch the graph of the circle.x+(y-1)^2=1 Which is best supported by the data in the chart? A: Current W flows at a higher rate than Current Z. B: Current Y flows at a lower rate than Current X. C: Current X has a lower potential difference than Current Y. D: Current Z has a greater potential difference than Current W. Telephone pole breaks and falls as shown. To the nearest foot, what was theoriginal height of the pole? they are 7 ft and 10 ft pls explain how u got the answer and the choices r a.19ft. b.17ft. c.20ft. d.18 ft pls find the answer for me but its a triangle and in the bottom it has number 10 and in the long side of the triangle is 7