A 50 foot rope weighing a total of 32 lbs extended over a cliff that is 35 feet to the ground. A large 8 pound bucket with 19 gallons of water was tied to the end of the rope at the ground. A group of hikers at the top of the cliff lifted the bucket by pulling up the rope, but when the bucket reached the top, only 12 gallons of water remained (the water spilled out steadily on the way up). If water weighs 8.3 lbs. / gallon. write a function that gives the work required in foot-lbs to lift the bucket up x feet from the ground, and use it to find the work to get the bucket to the top of the cliff.

Answers

Answer 1

Answer:

A function that gives the work required in foot-lbs to lift the bucket up x feet from the ground is [tex]W=16(50-x)+(19-\frac{x}{5})(8.3)x[/tex] and  the work to get the bucket to the top of the cliff is 3726 foot-lbs

Step-by-step explanation:

Work done to lift the rope by distance x feet:

[tex]W_1=32(\frac{50-x}{2})[/tex]

Work done to lift the bucket by distance x feet:

[tex]W_2=(19-\frac{x}{5})(8.3)x[/tex]

On reaching top 7 gallons of water spilled out so , on going up by x feet [tex]\frac{7x}{35}=\frac{x}{5}[/tex] gallons of water spilled out.

a function that gives the work required in foot-lbs to lift the bucket up x feet from the ground:

[tex]W=16(50-x)+(19-\frac{x}{5})(8.3)x[/tex]

Now the work to get the bucket to the top of the cliff i.e. x =35

[tex]W=16(50-35)+(19-\frac{35}{5})(8.3)(35)[/tex]

W=3726

Hence, a function that gives the work required in foot-lbs to lift the bucket up x feet from the ground is [tex]W=16(50-x)+(19-\frac{x}{5})(8.3)x[/tex] and  the work to get the bucket to the top of the cliff is 3726 foot-lbs


Related Questions

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Answers

There were 7 people

in 2015, Oklahoma experienced 907 perceptible earthquakes (far surpassing California), for an average of about 2.5 perceptible earthquakes per day. Consider perceptible earthquakes that occur independently with a constant daily rate of 2.5 What is the probability that a given day would have 1 perceptible earthquake?

Answers

Rockarooooooooooooooo

At a dinner party with an equal number of adults and children, adults are seated at tables of exactly 8 and children are seated at tables of exactly 18. What is the minimum number of children attending?

Answers

Answer:

LCD=72, but technically 0 because who said any kids were attending

Step-by-step explanation:

You are finding the Least common denominator I assume,

So, keep multiplying 18 by a number until you can find 8 multipled by a different number that matches the answer

18*4=72

8*9=72, hurray you done did it

The minimum number of children attending the dinner party will be 72.

What are ratio and proportion?

A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.

At a dinner party with an equal number of adults and children, adults are seated at tables of exactly 8, and children are seated at tables of exactly 18.

Let 'x' and 'y' be the number of tables for adults and children. Then we have

8x = 18y

x / y = 18 / 8

x / y = 9 / 4

The minimum number of children attending the dinner party will be given as,

⇒ 4 x 18

⇒ 72

The minimum number of children attending the dinner party will be 72.

More about the ratio and the proportion link is given below.

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What is the length of segment LM?
thank you :)​

Answers

Answer:

length of segment LM is 23.

Multiply each pair of factors. Type the product in
the space provided
(6 + 3)(6 - 31)
(4-57)(4+ 5) -
(-387)(-3 - 81) -

Answers

Answer:

I hope this help

The answer is 24

Answer:

45.                                    Second part is -36 then -4+28i

41

72

Step-by-step explanation:

Just did on edg 2021

There are two whole numbers which whe
multiplied by itself gives the same number. Wh
are they
8. A taxi driver filled his petrol tank with 40 litres
petrol on one day and 45 litres of petrol on the
next day. If the cost of petrol is * 54 per litre,
the amount spent on petrol in these two days
9. A dairy supplies 40 litres of milk in the morn
and 50 litres of milk in the evening. If the
of milk ist 24 per litre, find the total sa
rupees.​

Answers

8)

Petrol filled on Monday = 40 liters

Petrol filled on next day = 50liters

Total petrol filled = 90liters

Now, Cost of 1 liter petrol = Rs. 44

Cost of 90 liters petrol = 44 x90

= 44 x (100 – 10)

= 44 x 100 – 44 x10

= 4400 – 440

= Rs. 3960

Therefore, he spent Rs. 3960 on petrol.9

9)

Milk supplied in morning =40 liters

Milk supplied in evening =50 liters

Total milk supplied in one day = 90 liters

Cost of 1 litre milk =24 rupees

Cost of 90 liters milk=24 ×90

=2,160 ruees.

HOPE IT WILL HELP YOU.

PLEASE MARK IT AS BRILLIANT ANSWER.

BRAINLIEST TO FIRST ONE THATS CORRECT ANSWER!!

Find the area of the patio

Answers

15,077,500  

Area= W * H

In this case area would be 1850 * 8150 which equals 15,077,500

Junior Achievement USA and the Allstate Foundation surveyed teenagers aged 14 to 18 and asked at what age they think they will become financially independent. The responses of 944 teenagers who answered this survey question as follows:

Age Financially Independent Number of Responses
16 to 20 151
21 to 24 487
25 to 27 244
28 or older 62

Consider the experiment of randomly selecting a teenager from the population of teenagers aged to 14 to 18.

Required:
a. Compute the probability of being financially independent for each of the four age categories.
b. What is the probability of being financially independent before the age of 25?
c. What is the probability of being financially independent after the age of 24?

Answers

Answer:

(a) Shown below

(b) 0.68

(c) 0.32

Step-by-step explanation:

The frequency distribution is:

Age Group         Financially Independent Number of Responses

  16 to 20                                                  151

  21 to 24                                                 487

  25 to 27                                                244

28 or older                                               62

    Total                                                    944

(a)

Compute the probability of being financially independent for each of the four age categories as follows:

[tex]P(\text{16 to 20})=\frac{151}{944}=0.159958\approx 0.16\\\\P(\text{21 to 24})=\frac{487}{944}=0.515890\approx 0.52\\\\P(\text{25 to 27})=\frac{244}{944}=0.258475\approx 0.26\\\\P(\text{28 or older})=\frac{62}{944}=0.065678\approx 0.06[/tex]

(b)

Compute the probability of being financially independent before the age of 25 as follows:

P (Financially Independent before 25) = P (16 to 20) + P (21 to 24)

                                                               = 0.16 + 0.52

                                                               = 0.68

Thus, the probability of being financially independent before the age of 25 is 0.68

(c)

Compute the probability of being financially independent after the age of 24 as follows:

P (Financially Independent after 24) = P (25 to 27) + P (28 or older)

                                                               = 0.26 + 0.06

                                                               = 0.32

Thus, the probability of being financially independent after the age of 24 is 0.32.

y = −x2 − 8x − 15 vertex

Answers

Answer: The vertex is (-4,1)

Explanation: I used -b/2a to find the x, then plugged in -4 to find the y, which is 1.

Write an equation for the line that goes through the point (7,1) and has a slope of -1

Answers

Answer:  y = -x + 8

Step-by-step explanation:

Use the slope given and Substitute the y and x-values from the given coordinate into the equation and solve for b

y = mx + b

1 = -1(7) + b

1 = -7 + b

8 = b

Rewrite the equation without the y and x values, substitute the value  of b

y = -x + 8

(1 disappears, as 1 is implied in multiplication but  keep the negative sign)

convert a repeating decimal to a fraction

Answers

Answer:

Step-by-step explanation:

Convert a Repeating Decimal to a Fraction

Create an equation such that x equals the decimal number.

Count the number of decimal places, y. Create a second equation multiplying both sides of the first equation by 10y.

Subtract the second equation from the first equation.

Solve for x.

Reduce the fraction.

Answer:

2/3 = 0.66 repeated

Step-by-step explanation:

(4x3) x 6= (2x3) x is what

Answers

Answer:

4 x 3 = 12 x 6 = 72

2 x 3 = 6 x 12 = 72

x = 12

Step-by-step explanation:

The answer is at the top

8 vanilla cones, 15 strawberry cones, and 25 chocolate cones in one evening. What percent of the cones sold were strawberry?

Answers

Answer:

33 1/3%

Step-by-step explanation:

                                                                                   

A truck driver earns $51.20 driving an 80-mile route. The driver’s next route is 120 miles long and is billed at the same rate.
How much does the driver earn on this next route?

Answers

Answer:

$76.80

Step-by-step explanation:

120/80 equals how many times the next route is larger than the first one. Which is 1.5 times larger.

Take the first earning of 51.20 and multiply by 1.5 to get 76.80

120/80=1.5

51.20*1.5=76.8

On the next route the truck driver earns $76.80.

Answer:

The truck driver will be making $76.80 on his next route.

Step-by-step explanation:

First, you calculate the amount of money he makes per mile by dividing $51.20 by 80 miles. Then you take that pay rate, and multiply by 120 miles.

Write a ratio for the following situation: For every 5 female teachers, there are 2 male teachers

Answers

Answer:

the answer would be 5:2

01:37:35
What is the difference between the largest prime number less than 50 and the smallest composite number greater than 10

Answers

Answer:

35

Step-by-step explanation:

47-12=35

Please help!!

If KL NM and KN ≈ KM, find NM and mMKN.

A. NM = 6; mK=70°
B. NM = 9; mK=35°
C. NM = 12; mK=55
D. NM = 12; mK=70

Answers

Shjdkkakskskakshsgsisuelwis code also

Answer:

It's D. NM = 12; mK=70

Step-by-step explanation:

i just did it on edge but this for people who need it now. bc it's been a year 4 u.

Jenn swam ⅕ mile in ¼ hour. What is her unit rate in miles per hour?

Answers

Answer:

1/2 mile/1/5 hour = 5/2 mph = 2 1/2 mph

Step-by-step explanation:

Answer:

0.80mph

Step-by-step explanation:

If 1/5 = 1/4, then:

she swims 1/5 miles for every 1/4 (fourth) of an hour

per hour means 1 hour

we must covert 1/4 to 4/4 (one mile)

1/4 × 4/1 = 4/4

if we multiply by 4/1 to get to 4/4, then we must also multiply by 4/1 for 1/5 miles

1/5 × 4/1 = 4/5

Her unit rate in miles per hour is 4/5 per 1 miles, or 0.80mph

*0.80 = 4/5 because 4 × 20 = 80 and 5 × 20 = 100; 80/100 = 0.80*

The area of a square is 36 square inches. What is the perimeter of half the square?

Answers

The formula for the perimeter of a square is P = 4s, where s is the length of one of the four (4) congruent sides of the square.

The formula for the area of a square is A = s², and we're given that the area of a square, whose perimeter we're trying to find, is 36 sq. units; therefore, we have:

A = s²

36 sq. units = s²

√(36 sq. units) = √s²

6 units = s (Note: We used the positive square root (6) rather than the negative square root (-6) since you physically can't have a negative length!)

Therefore, ...

P = 4s

P = 4(6 units)

P = 24 units is the perimeter of a square whose area is 36 square units

The Indian Ocean covers 2.808 x 10^7 square miles. Colorado covers 1.04 x 10^5 square miles. How many times bigger than Colorado is the Indian Ocean?
Approximately 2.7 times bigger
Approximately 27 times bigger
Approximately 270 times bigger
Approximately 27000 bigger

Answers

Answer:

Approximately 27 times bigger

Step-by-step explanation:

Which number is the coefficient in the following equation
300x + 45 = 760

Answers

Answer:

300

Step-by-step explanation:

The number that is the coefficient in the equation 300x + 45 = 760 is 300

How to determine the coefficient?

The equation is given as:

300x + 45 = 760

Consider the following expression:

bx + a

b in bx represents the coefficient, x represents the variable, and a represents a term

Using the above as a guide in 300x + 45 = 760;

The coefficient in the equation 300x + 45 = 760 is 300

Read more about coefficient at:

https://brainly.com/question/2972832

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how do you solve the equation 8-5w= -37

Answers

Answer:

w=25/4=6.50

Step-by-step explanation:

8-5w=-37
-8 -8
-5w= -37 - 8
-5w= -45
The answer is
W=9

A rectangular kitchen is 11 ft by 17 ft. How many square tiles, each with a perimeter 24 inches, are needed to cover the floor?

Answers

Answer:

7.7916

Step-by-step explanation:

Multiply 11 by 17 which equals 187,

do 187 / 24 which equals 7.7916 tiles.

Hope this helps!

Use the Distributive Property to write an expression equivalent to 5 x (3 + 4)

Answers

Answer:

15 + 20

Step-by-step explanation:

Step 1: Write expression

5 × (3 + 4)

Step 2: Distribute 5 to each term

5(3) + 5(4)

Step 3: Simplify

15 + 20

Casey buys a bracelet. She pays for the bracelet and pays $0.72 sales tax. The sales tax rate is 6%, percent.
What is the original price of the bracelet, before tax?

Answers

Answer:

12$

Step-by-step explanation: 100/6 then multiply it by .72=12$

Answer

$12

Step-by-step explanation:

theres a picture on how I did it that I linked.

What is the least common denominator for 1/2 & 2/3 ?

Answers

Answer: 6

Step-by-step explanation:

1/2 = 3/6

2/3 = 4/6

wat is the answer to [x l 2 < x < 2]​

Answers

Answer: the empty set

Step-by-step explanation:

There are no real numbers x such that x>2 and x<2, simultaneously.

Answer:

x= -0.7667

Step-by-step explanation:

³√3²×5²×2³√3×5 help me plz

Answers

Answer:

750

3000 6^√3= 3602.8109

Step-by-step explanation:

i cant tell for the middle part if its

2.  ³√3 or 2³. √3

so the first answer is for the first one and the second is for the second one


A rectangle has length 4 yards more than its width. The area of the rectangle is 96 square yards. Find the
length and the width.

Answers

Answer:

Length = 12

Width = 8

Step-by-step explanation:

Area of a Rectangle = l x w

12 x 8 = 96

On a flight from New York to London, an airplane travels at a constant speed. An equation relating the distance traveled in miles, d, to the number of hours flying, t, is t = 1/500d. How long will it take the airplane to travel 800 miles? 400 miles? 200 miles?

Answers

please refer to this...............

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