Mathematics, 09.01.2021 08:10 kirbymichellrow6zq9

If you stretch a spring to 5 ft, it has 310 ft-lb of potential energy (PE). Potential energy varies directly as the square of the stretched length (l). The potential energy can be represented by the formula PE=1/2 kl^2, , where k is the spring constant. a. What is the value of the spring constant for this spring?
b. How many ft-lbs of PE would an 8 ft length of spring have?

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 13:30

49xy +34y - 72z. determine the degree of the polynomial

Answers: 1

Answer

Mathematics, 21.06.2019 17:00

Given f(x)=2x^2-8x+6 and g(x)=3x-1 find f(x) +g(x) a. 2x^2+5x+5 b.2x^2-11x+7 c. 2x^2-5x+5 d.2x^2-5x-5

Answers: 1

Answer

Mathematics, 21.06.2019 18:50

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Answers: 1

Answer

Mathematics, 21.06.2019 19:30

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Answers: 1

Answer

You know the right answer?

If you stretch a spring to 5 ft, it has 310 ft-lb of potential energy (PE). Potential energy varies...

Questions

Mathematics, 05.02.2021 18:20

What is the constant of proplity? O 0.75 O 0.8 01.25 O 1.5

Chemistry, 05.02.2021 18:20

Equimolar amounts of Cl2(g) and CO(g) are injected into an evacuated, rigid container, where they react according to the equation below....

Mathematics, 05.02.2021 18:20

Which description does NOT guarantee that a quadrilateral is a parallelogram? a. a quadrilateral with both pairs of opposite sides congruent b...

Mathematics, 05.02.2021 18:20

(9\times100)+(8\times10)+\left (7\times\dfrac{1}{1000} \right )(9×100)+(8×10)+(7× 1000 1 )...

Mathematics, 05.02.2021 18:20

If the slope of a line is 4 and you start at the origin (0, 0), name two points that would be on that line? *...

History, 05.02.2021 18:20

Russians were unhappy with Czar Nicholas for all of the reasons EXCEPT: A-a serious shortage of food B-the czar's poor leadership during the war C-the...

Mathematics, 05.02.2021 18:20

Nancy borrowed $150 from her parents to buy a video game system. She has agreed to pay them back $25 each week Which equation represents the amount of...

Biology, 05.02.2021 18:20

In the diagram of the transverse wave shown, the arrow labeled 3 is pointing at the - A: compression B: crest C: trough D: wavel...

English, 05.02.2021 18:20

How does the dress that LaNier wore on her first day of school contribute to the central idea of the text? Keep it simple as possible please...

English, 05.02.2021 18:20

Put the old shoes on the shelf in the back room. noun...

History, 05.02.2021 18:20

How did the Ethiopian ruler describe the different kinds of Europeans who came to Africa? How did he plan to respond?...

Mathematics, 05.02.2021 18:20

5. What are the coordinates of the reflection of (5.-7) about the x-axis? Need a Hir A (-5, -7) B. (-5, 7) C.(7,5) D. (5, 7)...

Mathematics, 05.02.2021 18:20

a 24 ft ladder is leaning against a 20 ft building, what is the distance between the bottom of the ladder and the base of the building?...

English, 05.02.2021 18:20

Which lines from the passage would best support a reader's claim that one of the central themes of the passage is independence?...

English, 05.02.2021 18:20

Meg overhears the Moffat sisters discussing . her finical problems isn't right I got that wrong MARKING BRAINLEIST...

Mathematics, 05.02.2021 18:20

Find values of x and y for which ABCD must be a parallelogram.

Mathematics, 05.02.2021 18:20

A baggage check service charges $4 for the first hour and $1 for each additional hour or fraction of an hour. Which point is NOT included in the graph...

Mathematics, 05.02.2021 18:20

Find the perimeters of the following shapes: 9 cma)4.1 cmb)3.6 cm3 cm7.2 cm...

Biology, 05.02.2021 18:20

Explain two ways in which forecasters collect weather data and how it's used...

Mathematics, 05.02.2021 18:20

Find the area cirlcle if the circle has a radius of 11 centimeters.

More questions: Mathematics Another questions