subject

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?

ansver

Answers: 3

Show answers

Another question on Mathematics

question

Mathematics, 21.06.2019 18:00

Describe the relationship between the angles of similar triangles and the sides of similar triangles

Answers: 1

question

Mathematics, 21.06.2019 19:30

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

Answers: 1

question

Mathematics, 21.06.2019 19:30

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

Answers: 1

question

Mathematics, 21.06.2019 21:10

What is the measure of one interior angle of a pentagon

Answers: 2

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

question

Social Studies, 06.09.2019 02:30

Jones (2015) found that employees want certain traits in their leaders. seven of the ten traits identified are: innovative, visionary, strategic, cha...

question

Social Studies, 06.09.2019 02:30

According to aristotle's principle of frequency, the ideas of "chair" and "table" are linked because: a. we see chairs and tables together at the same...

question

Mathematics, 06.09.2019 02:30

U solving a problem with an exponential equation the value of an antique plate after x years can be modeled by f(x) = 18(1.05). which grap...

question

Social Studies, 06.09.2019 02:30

Deborah is certain she would be caught, given an f for the course, and be expelled from school if she used jim's paper. deborah is one semester away f...

question

Physics, 06.09.2019 02:30

What must be part of a quantative observation...

question

Business, 06.09.2019 02:30

Aparking garage charges $4.004.00 for the first hour and $3.503.50 for each additional hour. if a customer gave the parking attendant $3030 for parkin...

question

Physics, 06.09.2019 02:30

An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. how deep is the water directly below...

question

Chemistry, 06.09.2019 02:30

Which of the following may have more than one phase? a. a pure solid b. a pure liquid c. a homogeneous mixture d. a heterogen...

question

Computers and Technology, 06.09.2019 02:30

List the first 11 elements of s = {aba, ba}∗ in canonical order. (note: the alphabet here is {a, b}, but the set s is being operated upon by the klee...

question

History, 06.09.2019 02:30

Which statements would supporters of the second national bank have agreed with? check all that apply....

question

English, 06.09.2019 02:30

When the shuttle bus comes to a sudden stop to avoid hitting a dog, it decelerates uniformly at 4.8 m/s2 as it slows from 9.2 m/s to 0 m/s. find the t...

question

Physics, 06.09.2019 02:30

Vector g is 40.3m long in a -35.0 direction. vector h is 63.3m long in a 270 direction. find the direction of their vector sum...

question

Mathematics, 06.09.2019 02:30

Alarge study used records from canada's national health care system to compare the effectiveness of two ways to treat prostate disease. the two treatm...

question

Physics, 06.09.2019 02:30

To test the quality of water sources in her area, shameka collects five samples from each water source and tests the quality of each sample. which imp...

question

Business, 06.09.2019 02:30

An investor's portfolio has decreased in value from $250,000 to $200,000 in this tax year. no security positions have been sold. the investor's write...

question

Mathematics, 06.09.2019 02:30

The number of pieces of popcorn in a large movie theatre popcorn bucket is normally distributed, with a mean of 1720 and a standard deviation of 20. a...

question

Social Studies, 06.09.2019 02:30

1.3.35 during a recent political campaign, a news organization poll of eligible voters showed that one candidate would beat the other in the general e...

question

Mathematics, 06.09.2019 02:30

What is the scale factor of the dilation?...

question

Chemistry, 06.09.2019 02:30

Araindrop has a mass of 50 mg and the pacific ocean has a mass of 7.08 x 10^20 kg. use this information to answer the questions below. be sure your an...

question

Mathematics, 06.09.2019 02:30

Acar travels 360.25 mi. it uses 13.1 gal of gas. how many miles per gallon of gas does the car travel? a 275 miles per gallonb 27.5 miles...

More questions: Mathematics Another questions

Questions on the website: 13722360