Thursday
April 17, 2014

Search: calc check: hooke's law

Number of results: 51,067

Phsyics
Hooke's Law and Young's Modulus Can someone please explain this to me. How can one determine if a material behaves according to Hooke's law?
Friday, October 24, 2008 at 1:33am by Mary

Math-Hooke's law
Using Hooke's Law (F=kx) determine: A) A weight of 5 pounds stretches a certain spring from its natural length of 10.2 inches to a length of 10.5 inches. Find K. B) What weight will stretch the spring in part (A) to a length of 13.2 inches? Thank you!
Tuesday, July 16, 2013 at 10:06pm by Leah

physics
Graph #1 is a parabola. Graph #2 is a hyperbola. a. Only graph 1 may possibly represent Hooke's law b. Only graph 2 may possibly represent Hooke's law c. neither
Friday, November 12, 2010 at 12:59pm by Sonya

physics
Sir Robert Hooke (1635-1703), studied the elastic properties of springs and formulated the law that bears his name. Hooke found the relationship among the force a spring exerts, F, the distance from equilibrium the end of the spring is displaced, x, and a number k called the ...
Sunday, February 20, 2011 at 11:44am by Anonymous

calc check: hooke's law
A force of 27N is required to maintain a spring stretched from its natural length of 12cm to a length of 15cm. How much work is done in stretching the spring from 15 to 25cm? and this is what i did.. please check to see if i did it correctly.. thanks :) f=27N 12cm to 15cm f(x...
Friday, June 29, 2007 at 11:00pm by COFFEE

biology
From ucmp dot Berkly dot edu, ~~~~~~~~~~~~ Hooke had discovered plant cells -- more precisely, what Hooke saw were the cell walls in cork tissue. In fact, it was Hooke who coined the term "cells": the boxlike cells of cork reminded him of the cells of a monastery. Hooke also ...
Wednesday, March 13, 2013 at 8:56pm by Ken

calc/physics
A force of 250 N is required to stretch a spring 5m from rest. Using Hooke's law, F=kx, how much work, in joules, is required to stretch the spring 7m from rest? The energy required scales with x^2. Multiply 250 J by (7/5)^2.
Monday, April 23, 2007 at 3:46pm by Mischa

PHYSICS HELP!-Hooke's Law
Thanks Mr. Bob!!!!
Friday, November 12, 2010 at 1:38pm by Jael

Physics
To understand Hooke's law, and Young's modulus, you need to understand stress and strain. Strain is a way of measuring how much a material stretches or gets compressed. Stress is a measure of the applied force (per unit area) that causes the deformation. The ratio of stress to...
Friday, October 24, 2008 at 1:33am by drwls

Math-Hooke's law
hmm. 5 = 0.3k use that k to get F = 13.2k
Tuesday, July 16, 2013 at 10:06pm by Steve

Physics
I will be happy to critique your thinking. I would use Hooke's law: F=kx
Sunday, November 29, 2009 at 5:08pm by bobpursley

Physics
Could a rubber band be used to replace the spring in a Hooke's Law experiment? Why/ why not?
Tuesday, February 22, 2011 at 2:36pm by Anonymous

physics
Here is a hint: F = k X It's called Hooke's Law. Solve for k, the spring constant
Wednesday, December 19, 2012 at 8:06pm by drwls

check american government
The constitution and the amendments thereto are passed by the required majorities, and are binding law. The law of this land is that the law is the law, an it is is own justification. Promises are not law.
Sunday, October 26, 2008 at 8:31pm by bobpursley

Physic A Level
I think I would use Hooke's law here. Note the wires are in parallel, so the effective Modulus is 100*2*E11 Nt/m^2, so deltaL=FL/AE where F is force, L is length, A is area of each wire, and E is the modulus of Elasticity. deltaL=500kg*9.8N/kg*50m/PI*(2E-3)^2*200E11N/m^2 check...
Friday, March 14, 2014 at 6:47am by bobpursley

PHISIC
no. The question asked what happened to the energy as it hit the ground and slowed then moved up. Remember hooke's law?
Wednesday, December 19, 2012 at 8:15am by bobpursley

Physics
A block of wood is compressed 2.0 nm when inward forces of magnitude 120N are applied to it on two opposite sides. (a) Assuming Hooke's law holds, what is the effective spring constant of the block? (b) Assuming Hooke's las still holds, how much is the same block compressed by...
Saturday, March 26, 2011 at 4:12pm by Work needed!

Physics
For Hooke's Law, the one about springs and mass, is the mass M a unit of g or kgs?
Thursday, March 26, 2009 at 7:57am by TP

work force
a force of 10 pounds is required to stretch a spring of 4 inches beyond it's natural length. assuming hooke's law applies, how much work is done in stretching the spring from its natural length to 6 inches beyond its natural length. what i did so far: F(x)=kx 10=k4 k=5/2 by ...
Friday, April 13, 2007 at 11:07pm by david

biology
when robert hooke observed cork through his compound microscope , all that he could see were empty chambers. why were hooke's chambers empty
Wednesday, March 13, 2013 at 8:56pm by idk

Science/Biomaterials
Hooke's law relates the amount of strain a material to the absolute amount of force applied. True or False?
Tuesday, June 5, 2012 at 12:23pm by James

PHYSICS HELP!-Hooke's Law
Think this way: elastic eonstant= amoutForce per deformation. I can crush wood by stomping it, but not concrete, that takes a very large force.
Friday, November 12, 2010 at 1:38pm by bobpursley

phy
A string of natural length L extends to a new length L' under tensile force F. If Hooke’S law applies, the work done in stretching the spring is ------------
Thursday, January 24, 2013 at 10:07pm by christ

Physics
The trampoline force is proportional to displacement, and in the opposite direction from the displacement. That is sometimes called Hooke's Law. The answer is 2.8 times his weight. 2.8 * 650 = ___ N
Monday, April 15, 2013 at 8:37pm by drwls

PHYSICS
Consider a spring and block system k= 18 N/m x initial = o m x final = 0.08m Useing Hooke's law to calculate the force needed to stretch this spring 8 cm.
Thursday, February 23, 2012 at 2:54pm by GRISSELL

Integral calculus
It requires 8 inch pounds of work to stretch a certain spring 2 inches from its rest position. Assuming that the spring follows hooke's law, what is k? Thanks for your answers! :)
Saturday, March 8, 2014 at 7:36pm by Kenya Nagai

physics
how much is the energy stored in hooke's law spring increased when its stretch is increased from 8 cm to 16 cm? why is it 300%?
Wednesday, October 29, 2008 at 11:10pm by mc

Physics
Start out by reviewing Hooke's Law. The frequency of motion will be f = 2*pi*sqrt(k/m) Hz The amplitude A will be the initial deflection. The maximum velocity is w * A w = sqrt(k/m) You do the rest. You should not be deprived of the learning experience.
Sunday, December 18, 2011 at 8:38am by drwls

Calculus
It requires 8 inch pounds of work to stretch a certain spring 2 inches from its rest position. Assuming that the spring follows hooke's law, what is k? Please answer this question. Thanks for your answers in advance.
Saturday, March 8, 2014 at 8:13pm by Kenya Nagai

Physics
you are dead wrong on the first, right on the second, and guess right on the last. The key on the last is Hooke's law: force= constant*displacement. if you have theforce, you halve the displacement.
Saturday, November 12, 2011 at 1:12am by bobpursley

algebra
hooke's law the distance d when a spring is stretched by a hanging object. if the distance is 14cm when the weight is 4kg what is the distance when the weight is 9kg The distance is
Thursday, December 15, 2011 at 10:17pm by karon

cytology
http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS374&q=robert+hooke+facts&aq=3&aqi=g10&aql=&oq=robert+hooke+&gs_rfai=CVQgBaNx1TKG8BKmMzATdws2gCgAAAKoEBU_Qm4Fc
Wednesday, August 25, 2010 at 11:13pm by Ms. Sue

physics
The force required to stretch a Hooke’s-law spring varies from 0 N to 68.1 N as we stretch the spring by moving one end 16.2 cm from its unstressed position. Find the work done in stretching the spring
Thursday, December 20, 2012 at 8:09pm by james

Physics
Mass does not appear directly in Hooke's law. It is a relationship between force (or weight) and deflection, distortion or strain. The force usually has units of kg*m/s^2, so k has units of kg/s^2
Thursday, March 26, 2009 at 7:57am by drwls

physics
Use Hooke's Law: |F| = k |d| Use Coulomb's Law: |F| = ke |q1 q2| / r^2 Equate forces and rearrange. k = ke |q1 q2|/(|d| r^2) Where: q1 = 0.840×10^(-6) C q2 = -0.546×10^(-6) C d = 3.18×10^(-2) m r = 4.95×10^(-2) m ke = 8.9875517873681764×10^9 N·m^2/C^2 (Coulomb's Constant)
Wednesday, September 4, 2013 at 12:21am by Graham

PHYSICS HELP!-Hooke's Law
more force per deformation, larger elastic constant. higher elastic constant, less elastic.Rubber bands have very low elastic constants.
Friday, November 12, 2010 at 1:38pm by bobpursley

Pre-Calc Helppp!!!
Find the indicated angle è. (Use either the Law of Sines or the Law of Cosines, as appropriate. Assume a = 110 and c = 136 (angle B=38) Round your answer to two decimal places.)
Thursday, April 5, 2012 at 11:42pm by Mike

science
It takes 3.38 J of work to stretch a Hooke’s-law spring 5.63 cm from its unstressed length. How much the extra work is required to stretch it an additional 4.22 cm? Answer in units of J
Friday, November 16, 2012 at 10:38pm by jason

Physics
When the rubber band in a slingshot is stretched, it obeys Hooke's law. Suppose that the "spring constant" for the rubber band is k = 53 N/m. When the rubber band is pulled back with a force of 7.3 N, how far does it stretch? F=kx solve for x.
Thursday, March 29, 2007 at 1:04am by Mary

math
Hooke's Law. The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 64cm when the weight is 3kg, what is the distance when the wight is 9kg?
Wednesday, July 28, 2010 at 2:41pm by Vance Reed

physics
When a 4.48 kg mass is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.68 cm. How much work must an external agent do to stretch the spring 3.96 cm from its unstretched position?
Saturday, October 31, 2009 at 1:02pm by Anonymous

physics
The amount of stretching is proportional to the weight applied. That's called Hooke's law. Since 100N stretches the spring 10 cm, 200 N will stretch it 20 cm. Add that to the original unstretched length. 50 + 20 = ___ cm
Monday, July 12, 2010 at 10:24pm by drwls

physics
A 53 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 13 m, and falls a total of 35 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies.
Wednesday, April 6, 2011 at 4:59pm by Cara

physics
Yes. Unless the yield strength is exceeded, steel obey's Hooke's law (that stress is proportional to strain), much better than rubber. That is the proper definition of elasticity. Most rubber is subject to hysteresis: when stretched and unstretched, much energy is wasted as ...
Tuesday, March 4, 2008 at 6:16am by drwls

Physics
The force required to stretch a Hooke’s-law spring varies from 0 N to 70.4 N as we stretch the spring by moving one end 5.35 cm from its unstressed position. Find the force constant of the spring. Answer in units of N/m
Friday, December 14, 2012 at 9:00pm by Patrick

Physics
The force required to stretch a Hooke’s-law spring varies from 0 N to 63.5 N as we stretch the spring by moving one end 5.31 cm from its unstressed position. Find the force constant of the spring. Answer in units of N/m
Friday, February 8, 2013 at 9:33am by Ted

PHYSICS
If it takes 4.12 J of work to stretch a Hooke's law spring 12.1 cm from its unstressed length, determine the extra work required to stretch it an additional 10.0 cm.
Tuesday, September 29, 2009 at 9:05pm by Luke

Physics (2)
If it takes 4.00 J of work to stretch a Hooke's Law spring 10.0 cm from its unstressed length, determine the extra work required to stretch it an additional 10.0 cm
Thursday, October 13, 2011 at 5:24pm by Whitney

engineering materials
I would start here: http://en.wikipedia.org/wiki/Hooke%27s_law
Tuesday, July 7, 2009 at 9:04am by bobpursley

Math: law of exponents check answers
Look, the law of exponents applies to all... You had a 3^1 in the denominator, specifically (3^1...)^-2 and that changes to 9 in the numerator. Law of exponents does not apply to just variables.
Sunday, September 8, 2013 at 7:53pm by bobpursley

PHYSICS
The stress-strain curve for a Hooke's law spring is a triangle. The area is the work done. Therefore the work done is proportional to the square of the displacement from unstressed state. 4.12 J : 12.1² X : (12.1+10)² Can you take it from here?
Tuesday, September 29, 2009 at 9:05pm by MathMate

PHYSICS HELP!-Hooke's Law
So because it would take more force to crush the concrete, then the elastic constant is larger than wood...or would it be smaller than wood because wood is more 'elastic'? Ugh...I'm sorry!
Friday, November 12, 2010 at 1:38pm by Jael

physics
A 55.0 kg circus performer oscillates up and down at the end of a long elastic rope at a rate of once every 7.20 s. The elastic rope obeys Hooke's Law. By how much is the rope extended beyond its unloaded length when the performer hangs at rest?
Friday, March 23, 2012 at 1:03pm by Katie

Math
a weight of mass m is attached to a spring and oscillates with simple harmonic motion. By Hooke's Law, the vertical displacement, y(t) satisfies the differential equation dy/dt=sqrt(k/m)*sqrt(A^2-y^2) where A(Fixed) is the maximum displacement and k is a constant, solve this ...
Saturday, December 15, 2012 at 8:00pm by A.J.

Physics
Additional Info! My teacher told me that I could use Hooke's law for a) (f=kx), Elastic potential energy (Ee=1/2kx^2) for b), and Ee=Eg (Eg=mg(change in height)) for c). I worked a) out to be 1337.72 by using F=mg to find force to use in the F=kx equation.
Monday, January 14, 2013 at 4:50pm by Shanelle

Physics
A 72 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 13 m, and falls a total of 38 m. Calculate the spring stiffness constant "k" of the bungee cord, assuming Hooke's law applies. Calculate the maximum acceleration she experiences.
Sunday, November 8, 2009 at 6:34pm by Anonymous

Physics
A 66 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 14 m, and falls a total of 34m. 1. Calculate the spring stiffness constant of the bungee cord, assuming Hooke's law applies. 2. Calculate the maximum acceleration she experiences.
Monday, November 1, 2010 at 1:02pm by Nick

Physics
A 58 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 15 m, and falls a total of 36 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies. Calculate the maximum acceleration she experiences.
Tuesday, November 16, 2010 at 12:15am by Linda

physics
A 56 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 11 m, and falls a total of 38 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies. Calculate the maximum acceleration she experiences.
Monday, February 28, 2011 at 11:03pm by Kristie

physics
Deflection will be proportional to the weight applies (Hooke's Law). X = Deflection = k * mass X2/X1 = M2/M1 X2 = (M2/M1)*X1 Multiply 5.3 cm by 10/0.65 for the answer.
Wednesday, January 12, 2011 at 6:33pm by drwls

Physics
A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. The length and radius of the collagen are 2.5 and 0.091 cm. Young's Modulus is 3.1 x 10^6 N/m^2. a.) If the stretching obeys Hooke's Law, what is the spring constant...
Saturday, February 23, 2013 at 6:27pm by Lori

physics
Can you please help me find the theory of Robert Hooke on Wave Explanation of Colors. Please... My report about this is due on Monday. Thank you for helping. God bless. According to (Broken Link Removed) , "Robert Hooke (1635-1703) who started as an assistant to Robert Boyle, ...
Sunday, July 30, 2006 at 1:52am by imee

algebra
Hooke.s Law. The distance d when a spring is streched by a hanging object varies directly as the weight w of the object. If the distance is 66 cm when the weight is 3 Kg., what is the distance when the weight is 7 Kg.
Friday, June 1, 2012 at 12:17pm by plz hlp

College Physics PLEASE HELP
A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. The length and radius of the collagen are 2.5 and 0.091 cm. Young's Modulus is 3.1 x 10^6 N/m^2. a.) If the stretching obeys Hooke's Law, what is the spring constant...
Saturday, February 23, 2013 at 9:53pm by Lori

PHYSICS
Part 1: A M=0.1 kg mass weighs F = Mg = 0.98 Newtons. The spring constant is k = F/X . If you put X in meters (0.01 m), do the computation and you will get k in MKS units of N/m Part 2: Use the same Hooke's law formula, k = F/X Rearrange it to get X= F/k The do the calculation...
Wednesday, November 10, 2010 at 9:31am by drwls

Physics
If a 40 kg brick and a 400 kg brick each dropped from 1 m above a trampoline, find the lowest position of each brick. Assume the trampoline is a simple spring obeying Hooke's law with a k value of 12 000 N/m. I know i must use Fs= kx, but where do I start? Do i find Fg at 1 m?
Friday, November 6, 2009 at 10:19am by Rachel

physics ! HELP !
A 65 kg bungee jumper leaps from a bridge. She is tied to a bungee cord that is 11m long when unstretched, and falls a total of 30m . Part a) Calculate the spring constant of the bungee cord assuming Hooke's law applies. part b)Calculate the maximum acceleration she experiences.
Wednesday, May 23, 2012 at 10:22pm by emmie

calculus/physics
Assuming an ideal spring (linear) and using Hooke's law, the force generated by the spring is: F = -kx (1) where x is the distance the spring is stretched from the rest position. So, substituting the info into (1) you get: -10 = -k(2) or k = 5 lb/in work is the 1st integral of...
Thursday, March 11, 2010 at 9:47am by FredR

HIPPA
please check my answer thanks If HIPPA law is stricter than state law, which standards should you follow and why ? What if state all was stricter ? This is all I have so far any input would be great HIPPA laws are stricter than any state law. This standard over rules any state...
Monday, May 12, 2008 at 11:17am by Casie

College Math
Hooke's Law the table shows the distance D that a spring stretches when a weight W is hung on it. W (pounds 2 6 9 15 D (inches) 1.6 4.8 7.2 12 (a.) Do the data represent direct or inverse variation? Explain. (b.) Find an equation that models the data. (c.) How far will the ...
Thursday, April 28, 2011 at 2:43pm by Shin

physics
A rubber band of relaxed length 6.3 cm stretches to 10.2 cm under a force of 1.0 N, and to 16.5 cm under a force of 2.0 N. Does this rubber band obey Hooke's Law?
Wednesday, October 19, 2011 at 12:16am by May

Biology
In 1665, Robert Hooke, an English scientist, reported an interesting observation while looking through his microscope at a cork, "I took a good clear piece of cork, and with a penknife sharpened as keen as a razor, I cut a piece of it off, then examining it with a microscope, ...
Saturday, September 6, 2008 at 12:10pm by Jennifer

Physics
If a 40 kg brick and a 400 kg brick each dropped from 1 m above a trampoline, find the lowest position of each brick. Assume the trampoline is a simple spring obeying Hooke's law with a k value of 12 000 N/m. So, I used mg(h+x)=1/2 k x^2 then solved for x in each case. ** Bob...
Friday, November 6, 2009 at 3:42pm by Rachel

math
hooke's law determine that if a small weight is suspended from a spring,the length of the stretched spring y, is a linear function of the weight, x. determine the linear equation if the unstretched spring is 12 inch and weight of 2 lbs stretches it to 16 inch
Sunday, October 23, 2011 at 10:19pm by rahul patel

Sorry, another math problem please
Hooke's Law asserts that the force required to either stretch or compress a spring from its natural length varies as the displacement. A certain spring is stretched 12 inches beyond its natural length by a 3 lb. weight. Express the force in terms of the displacement for this ...
Wednesday, August 6, 2008 at 9:15pm by Nahel

Bus law
Why is the United State a “common law country”? We're a common law country because we follow precedents established over hundreds of years in Britain and the U.S. Common law is followed except when statutory law opposes a specific practice. Check this site for more information...
Monday, February 19, 2007 at 6:09pm by mike

physics
A 53.6 kg circus performer bobs up and down at the end of a long elastic rope at a rate of once every 2.80 s. The elastic rope obeys Hooke's law. Find how much the rope is extended beyond its unloaded length when the performer hangs at rest. ** I think Im missing a step when i...
Wednesday, November 28, 2012 at 8:33pm by emily

PHYSICS HELP!-Hooke's Law
You should expect concrete to have an elastic constant that is _____ than wood. a. larger than b. smaller than c. equal to So...based on what I looked up as the definition for elastic constant and linear elasticity, I think conrete is less elastic than wood is. As compared to ...
Friday, November 12, 2010 at 1:38pm by Jael

physics
When a 2.50-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.13 cm. a)What is the force constant of the spring? b) If the 2.50-kg object is removed, how far will the spring stretch if a 1.25-kg block is hung on it?
Wednesday, October 5, 2011 at 7:48pm by Anonymous

physics
sorry mr bob purlsey again to annoy you. so i did all my calculations and read about hooke's law yesterday and presented to my teacher. however i was not allowed to used hooke's law because we haven't learned it yet and i did not know how to connect potential energy to force ...
Thursday, June 14, 2007 at 11:16pm by physics(sorry)

government
Which branch of the law regulates wrongful acts involving injury to one’s person, property, or reputation in a situation not covered by the terms of a contract? A. common law B. tort law C. civil law D. contract law
Thursday, March 8, 2012 at 4:22am by Johana

government
Which branch of the law regulates wrongful acts involving injury to one's person, property, or reputation in a situation not covered by the term of a contract? A. common law B. tort law C. civil law D. contract law
Monday, April 2, 2012 at 8:26pm by Charlette

trigonometry
Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30" I have to use logarithms and law of tangents . and then provide the check. which says law of sine or mollweids equation. I can't us the cosine law. If you ...
Saturday, February 26, 2011 at 6:21pm by Anon

physics
Using Hooke's law: Force=kx k=force/x=365/.3 400=k distance distance=400/k=400/(365/.3)=400*.3/365 Neat.
Sunday, October 14, 2007 at 8:53pm by bobpursley

College Algebra
Hooke's Law states that the distance a spring stretches is directly proportional to the weight attached to the spring. If a 30-pound weight attached to the spring stretches the spring 8 inches, find how much weight is needed to stretch the spring 12 inches.
Tuesday, July 10, 2012 at 2:09pm by BFG

physics
The force required to stretch a Hooke’s-law spring varies from 0 N to 62.4 N as we stretch the spring by moving one end 17.2 cm from its unstressed position. a) Find the force constant of the spring. Answer in units of N/m b) Find the work done in stretching the spring. Answer...
Wednesday, October 12, 2011 at 4:44am by phys101!

physics
(a) A bathroom scale has a spring that is compressed by 1.50 cm when a 165 kg person stands on the scale. Assuming the spring is described by Hooke's law, find its force constant. (b) How much would it be compressed if a 94.0 kg person stands on the scale in an elevator that ...
Sunday, July 28, 2013 at 12:56pm by Justin

bus law
What is the chronological order of the major legislation that makes up the history of employment law in this country? For each law, state the social problem the law was designed to address, and discuss how employment law has affected the workplace in the last two decades.
Thursday, September 2, 2010 at 6:32pm by kash

physics- please help
A 65 kg bungee jumper leaps from a bridge. She is tied to a bungee cord that is 11m long when unstretched, and falls a total of 30m . Part a) Calculate the spring constant of the bungee cord assuming Hooke's law applies. part b)Calculate the maximum acceleration she ...
Thursday, May 24, 2012 at 1:05am by emmie

Science-Chemistry
1. What is Charles’s law? • State the definition of the law in words. • What are the assumptions of Charles’s law? • Write mathematical equations that represent the law. • What can you do with Charles’s law? • Using a gas-filled balloon as an example, describe what happens to ...
Friday, May 31, 2013 at 2:11pm by Help needed.... Danielle

physic
a force of 3.5 N is applied to a spring which obeys Hooke's law and produces and extension of 0.07m. calculate the spring constant what is the size of the force that will produce and extension of 4.0 cm caluclate the unstretched length of the spring if its total length is 17.5...
Tuesday, May 18, 2010 at 9:22am by ablin

physics
A spring-loaded dart gun is used to shoot a dart straight up into the air, and the dart reaches a maximum height of 12 meters. If the spring is compressed only half as far the second time, how far up does the dart go this time (no friction and using Hooke’s Law on the spring) ...
Saturday, November 21, 2009 at 12:45pm by jon

Government Law question
What kind of law is it when judges make the law by their decisions on the bench? ___ Law
Monday, January 14, 2013 at 6:15pm by Allyson

Physics
A uniform bar of iron is supported by a lon, uniform Hooke's Law spring. The spring is cut in half exactly and the two pieces are used to support the same bar. If the whole spring is stretched by 4 cm in the first bar (that is not cut in half) how much would each spring ...
Wednesday, July 20, 2011 at 5:02pm by Capreeca

question about math (law of syllogism/detachment)
Does anyone know about the law of syllogism and law of detachment. If so, can you check my work.
Sunday, September 13, 2009 at 4:14pm by Candy

Physics
An automobile of mass 2000 kg is driven into a brick wall in a safety test. The bumper behaves like a Hooke’s-law spring. It has an effective spring constant of 5 × 106 N/m, and is observed to compress a distance of 8.7 cm as the car is brought to rest. What was the initial ...
Monday, December 3, 2012 at 6:34pm by Shelly

Physics
I think that for energy of a spring I should use (1/2)(k)(x^2) and (1/2)(m)(v^2) but i'm not sure what to do with the equations to solve the problem. A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. The length and ...
Wednesday, July 14, 2010 at 10:30am by Brianna

Pre Calc
In this notation, small letters are usually used to represent sides, and capital letters to indicate the angles at the vertex, so yours : b=14, c=15, cos A = 3/5 direct application of the cosine law a^2 = 14^2 + 15^2 - 2(14)(15)cos A = .... once you have a use the Sine Law to ...
Monday, April 13, 2009 at 9:16pm by Reiny

Calc.
I made a diagram and obtained a triangle with sides 37 and 210 with a 19ºbetween them Using the cosine law if found the side opposite the 19º angle to be 175.4 So the bee is 175.4 m from the hive Then using the sine law I got the angle between the resultant and the first path ...
Wednesday, July 2, 2008 at 8:13pm by Reiny

business law
No, because the the store did not create a situation that led her to assume that Hall was a sales clerk. Check out page 416 in your Business Law book/
Tuesday, April 12, 2011 at 2:38pm by just a student

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