Monday

July 28, 2014

July 28, 2014

Number of results: 4,266

**help me physics**

The femur is a bone in the leg whose minium cross-sectional area is about 3.60 E-4 m2. A compressional force in excess of 6.90 E4 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. 1 N/m2 (b) What is the strain that exists under a maximum-...
*November 16, 2010 by william*

**Physic**

A 89.0 kg person stands on one leg and 90% of the weight is supported by the upper leg connecting the knee and hip joint-the femur. Assuming the femur is 0.640 m long and has a radius of 1.90 cm, by how much is the bone compressed?
*May 7, 2011 by Bret*

**Physics**

A femur is a bone in the leg whose minimum cross sectional area is about 4.0 x 10^-4 m^2. A compressional force in excess of 6.8 x 10^4 N will fracture this bone. A.) Find the maximum stress that this bone can withstand and B.) What is the strain that exists under a maximum ...
*February 23, 2013 by Lori*

** physics please help**

The femur is a bone in the leg whose minimum cross-sectional area is about 3.60 10-4 m2. A compressional force in excess of 6.90 104 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists under a maximum-stress ...
*November 14, 2010 by dan*

**Physics**

Consider a human femur of length L = 469 mm. Model the bone as a hollow cylinder, with inner radius Ra = 4.17 mm and outer radius Rb = 12.51 mm. If a 74 kg person's weight is supported by one leg, calculate the stress on the femur; express as percentage of the UCS. Ignore the ...
*October 24, 2012 by Anonymous*

**physics help**

The femur is a bone in the leg whose minimum cross-sectional area is about 3.60 10-4 m2. A compressional force in excess of 6.90 104 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists under a maximum-stress ...
*November 16, 2010 by yoni*

**physics**

When a large bone such as the femur is broken, the two pieces are often pulled out of alignment by the complicated combination of tension and compression forces that arise from the muscles and tendons in the leg (see the Xray image in Figure P3.64A). To realign the bones and ...
*September 11, 2011 by Anon14*

**biology**

what kind of bone comprises the proximal epiphysis of the femur? spongy bone
*September 21, 2006 by nina*

**Algebra**

Archaeologists and forensic scientists use the length of of human bones to estimate the height of his/her femur f(the bone from the knee to the hip socket), in centimeters using the following formulas: Male h=69.089+2.238f Female: h = 61.412+2.317f a. a partial skeleton of a ...
*March 10, 2012 by kim*

**Anatomy**

a) What is meant by the terms dermal (intramembranous) and endochondral with respect to bone? Give an example of each. b) With the aid of simple diagrams, describe the parts of a young (growing) bone, as typified by the femur. i am comfused with that
*June 4, 2010 by George2*

**Physics**

When standing erect a person's weight is supported chiefly by the larger of the two leg bones. Assuming this bone to be a hollow cylinder of 2.5 cm internal diameter and 3.5 cm external diameter, what is the compressive stress on the bone (in each leg) in the case of a person ...
*March 4, 2012 by Brittnieee.*

**physical education**

are the anatomical names for the following right?: skull-cranium shoulder blade-clavicle spine-sternum collar bone-scapula thigh bone-femur fingers-phalanges can you please check if the names are correct
*October 16, 2010 by chelsea*

**physics**

(a) Find the magnitude of the total force of the traction apparatus applied to the leg, assuming è = 31°, the weight of the leg is 21 N and the weight hanging from the traction apparatus, m, is also 21 N. 1 N (b) What is the horizontal component of the traction force acting on...
*June 6, 2011 by Anonymous*

**Physics**

The Russell Traction System To immobilize a fractured femur (the thigh bone), doctors often utilize the Russell traction system illustrated in the figure. Notice that one force is applied directly to the knee, F_1,while two other forces, F_2 and F_3 are applied to the foot. ...
*October 2, 2009 by Jenny*

**Physics**

The femur of a human leg (mass 10 kg, length 0.9 m) is in traction, as shown in the figure below. The center of gravity of the leg is one-third of the distance from the pelvis to the bottom of the foot. Two objects, with masses m1 and m2, are hung using pulleys to provide ...
*July 15, 2013 by Jason *

**college physics**

From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg? Ignore air resistance and assume the CM of the person moves a distance of 0.65 m from the standing to the seated position (that is, in breaking the fall). Assume the breaking ...
*March 14, 2010 by Anonymous*

**physics help please!!!**

From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg? Ignore air resistance and assume the CM of the person moves a distance of 0.65 m from the standing to the seated position (that is, in breaking the fall). Assume the breaking ...
*March 14, 2010 by Anonymous*

**Anatomy & Physiology**

For my class, I need a to make a human bone such as a femur or any other bones in the human body. Any suggestions on a website?
*March 17, 2014 by Gabby*

**Physics**

A 77 kg sprinter is running the 100 m dash. At one instant, early in the race, his acceleration is 4.7 m/s^2. a) What total force does the track surface exert on the sprinter? Assume his acceleration is parallel to the ground. Give your answer as a magnitude. b) What total ...
*July 27, 2013 by Anonymous*

**anatomy**

For my anatomy class, I need a to make a human bone such as a femur or any other bones in the human body. Any suggestions on a website?
*March 17, 2014 by Vicky*

**physics-torque**

A person is doing leg lifts with 3.0-kg ankle weights. She is sitting in a chair with her legs bent at a right angle initially. The quadriceps muscles are attached to the patella via a tendon; the patella is connected to the tibia by the patellar tendon, which attaches to ...
*January 19, 2011 by Trace*

**Science**

Which of the following explains why a bone in a bird’s wing is homologous to a bone in a lizard’s front leg? a.The bones in the two species provide for the same type of motion. b.The bones in the two species are both vestigial structures. c.The two species were exposed to the ...
*November 10, 2013 by Anonymous*

**Evolution**

Which of the following explains why a bone in a bird’s wing is homologous to a bone in a lizard’s front leg? a.The bones in the two species provide for the same type of motion. b.The bones in the two species are both vestigial structures. c.The two species were exposed to the ...
*November 10, 2013 by Anonymous*

**cancer/clot/leeches**

my dad has cancer and has developed a clot in his leg which is not the dangerous one, but is very painful. he had an operation where they put plates and pins in his leg due to the cancer eating away his femur to about one inch. he is limited to small pain killers and cannot go...
*May 15, 2008 by lana*

**math**

using the formula h(x) = 1.95 x + 72.85. Find the height of a female whose femur is 35 cm long x=length and H=height.
*March 16, 2010 by Maryann*

**Physics**

Two dogs are pulling on opposite ends of a bone. One dog pulls to the right with a force of 50 N while the other pulls to the left with a force of 40 N. Are the forces on the bone balanced or unbalanced? How do you know? What is the net force on the bone? Would the bone's ...
*November 28, 2010 by Jasper*

**physics**

A particular person’s lower leg is 59 cm long and has a mass of 8.0 kg. If allowed to swing freely, with what time period would the leg swing? (Treat the leg as a simple pendulum with length equal to half the leg length and all the leg’s mass concentrated at this point.)
*April 3, 2014 by Anonymous*

**Physics**

A variation Russel traction supports the lower leg in a cast. suppose that the patient's leg and cast have a combined mass of 15.0kg and m1 is 4.50kg. (a) what is reaction force of the leg muscles to the traction? (b) what must m2 be to keep the leg horizontal?
*January 31, 2010 by C. Standard *

**Animal Skeletal and Muscular Systems**

Which of the following is an example of voluntary muscle activity? a. scratching b. movement of food down the intestine c. heart contractions d. movement of urine into the bladder Which of the following muscles are used when breathing? a. intercostal and pectoral b. ...
*October 1, 2011 by Kelsi*

**Physics**

A force compresses a bone by 0.10mm. A second bone has the same length but twice the cross-sectional area as the first. By how much would the same force compress the bone?
*December 9, 2012 by Caroline*

**algebra**

The function described by H(x) = 2.75 +71.48 can be used t predict the hight, in centimeters, of a woman whose humerus ( the bone from the elbow to the shoulder) is x cm long.redct the highth of a woman whose humerus is 35cm long.
*July 5, 2010 by Robert*

**Algebra**

The hypotenuse of a right triangle is 5cm long. One leg is 3cm longer than the other leg. Find the dimensions of the shorter leg. (give your answer in radical form)
*September 23, 2008 by mary*

**algebra**

the larger leg of a right triangle is 7ft longer than its samller leg. the hypotenuse is 1ft longer than the larger leg. how many feet long is the samller leg?
*March 24, 2013 by jessica*

**algebra**

It has been found that adult height can be accurately predicted by taking specific measurements of children and multiplying them by a scale factor obtained by analyzing large representative samples. Twelve-year old Jean reads that female height will be 73cm plus 1.9 times the ...
*February 8, 2011 by jayne*

**Anatomy & Physiology**

Okay, heres one of those questions that isn't easily found in lab manuals and text books (atleast mine). ALSO, if you have a source, could you please show me? It might come down to me having to prove the teacher that i'm right, that is if you're right. There are 3 questions: 1...
*February 23, 2009 by Akashic*

**Word Problem**

The function H described by H(x)= 2.75x + 71.48 can be used to predict theheight in centimeters, of a woman whose humerus(the bone from the elbow to the shoulder) is x cm long. Predict the height of a woman whose humerus is 35 cm long.
*January 28, 2010 by Chloe*

**physics**

PERIOD OF THE LEG The period of the leg can be approximated by treating the leg as a physical pendulum, with a period of 2pi*sqrt(I/mgh), where I is the moment of inertia, m is the mass, and h is the distance from the pivot point to the center of mass. The leg can be ...
*February 26, 2010 by Jennifer*

**Physics**

Two dogs are pulling on opposite ends of a bone. One dog pulls to the right with a force of 50N while the other pulls to the left with a force of 40N. Are the forces balanced or unbalanced? How do you know? What is the net force on the bone? Would the bone's velocity change? Why?
*March 7, 2011 by Rosie *

**Physics**

Jane is sitting on a chair with her lower leg at a 30.0° angle with respect to the vertical. You need to develop a computer model of her leg to assist in some medical research. If you assume that her leg can be modeled as two uniform cylinders, one with mass M1 = 17 kg and ...
*October 25, 2007 by Dante*

**Physics**

Jane is sitting on a chair with her lower leg at a 30.0° angle with respect to the vertical, as shown. You need to develop a computer model of her leg to assist in some medical research. If you assume that her leg can be modeled as two uniform cylinders, one with mass M1 = 17 ...
*October 24, 2007 by Dante*

**math**

did i do this right? The hypotenuse of a 30 ¨C 60-90 right triangle measure 18cm. What are the lengths of the longer leg and shorter leg? i got -> 9 for the shorter leg and 9¡Ì3 -> 15.58845727 for the longer leg is that right?
*May 10, 2009 by niki*

**Math 116 algebra please check**

The function H described by H(x)= 2.75x + 71.48 can be used to predict the height in centimeter of a woman whose humerus ( the bone from the elbow to the shoulder) is x cm long Predict the height of a woman whose humerus is 37cm long The predicted height of a woman whose ...
*July 16, 2008 by jay jay*

**Physics**

Leg traction is applied to a patient's leg. If the physician requested a 32N force to be applied to the leg, and the angle is 60 degrees, what mass m must be used for the object hanging from the massless cable?
*October 10, 2009 by Lisa*

**Physics**

Leg traction is applied to a patient's leg as shown in the figure below. If the physician has requested a 57 N force to be applied to the leg, and the angle is θ = 60o , what mass m must be used for the object hanging from the massless cable? So < represents angle ...
*October 14, 2009 by Sam*

**math (geometry)**

find the perimeter of a 30-60-90 degree triangle whose shorter leg is 16 cm
*January 1, 2010 by sarah jane*

**Math 116 please help soon**

The function H described by H(x)= 2.75x + 71.48 can be used to predict the height in centimeter of a woman whose humerus ( the bone from the elbow to the shoulder) is x cm long Predict the height of a woman whose humerus is 36cm long
*June 6, 2010 by Taffany *

**Science**

16g of bone displaced a volume of 8mL of water.what is the density of the bone?
*August 24, 2011 by lala*

**calculus**

If a bone is found to have 20% of its normal amount of carbon 14, how old is the bone?
*December 9, 2012 by Jenn*

**calculus**

If a bone is found to have 20% of its normal amount of carbon 14, how old is the bone?
*December 9, 2012 by Jenn*

**Math**

The function H described by H(x)= 2.75x + 71.48 can be used to predict the height, in centimeters, of a woman whose humerus( the bone from the elbow to the shoulder) is x cm long? Predict the height of a woman whose humerus is 35 cm long. Is this correct? 2.75(35) + 71.48= 167...
*January 31, 2010 by Kelly*

**College Algebra**

The function H described by H(x)= 2.75x+71.48 can be used to predict the height in centemeters, of a woman whose humerus(the bone from the elbow to the shoulder)is x cm long. Predict the height of a woman whose humerus is 32cm long.
*April 15, 2011 by deb*

**anatomy**

What differences can be seen between compact bone and spongy bone by the naked eye?
*October 13, 2009 by christian*

**intermediate algebra**

A right triangle has two legs and a hypotenuse. One leg of the triangle is 3 feet longer than the other leg. The hypotenuse is 15 feet. Find the length of each leg. I got 12 feet and the other leg is 9 feet Is this correct?
*November 6, 2008 by jennifer*

**intermediate algebra**

A right triangle has two legs and a hypotenuse. One leg of the triangle is 3 feet longer than the other leg. The hypotenuse is 15 feet. Find the length of each leg. I got 12 feet and the other leg is 9 feet Is this correct?
*November 7, 2008 by jennifer*

**Physics**

An off-roader explores the open desert in her Hummer. First she drives 25 degrees west of north with a speed of 7.0 km/h for 15 minutes, then due east with a speed of 11 km/h for 7.5 minutes. She completes the final leg of her trip in 22 minutes.What is the direction of travel...
*June 28, 2012 by Hiral*

**algebra**

The function H described by H(x) = 2.75x + 71.48 can be used to predict the height, in centimeters, of a woman whose humerus (the bone from the elbow to the shoulder) is x cm long.
*March 9, 2011 by sara*

**algebra**

The function H described by H(x)=2.75x + 71.48 can be used to predict the height, in centimeters, of a woman whose humerus (the bone from the elbow to the shoulder) is x cm long. Predict the height of a woman whose humerus is 38 cm long?
*September 9, 2009 by Frustrated*

**algebra**

The function H described by H(x) =2.75x+71.48 can be used to predict the height, in centimeters, of a woman whose humerus (the bone from elbow to the shoulder) is x cm long. Predict the height of a woman whose humerus is 32 cm long.
*March 11, 2010 by Ed*

**math**

list a set of at least 12 numbers that has a minium of 28 maximum of 34 median of 30 mode of 29
*January 22, 2013 by Ashley*

**Algebra**

A solar collector and its stand are in the shape of a right triangle. The collector is 5.00 m long, the upright leg is 2.00 m long, and the base leg is 4.58 m long. Because of inefficiencies in the collector’s position, it needs to be lowered by 0.50 m on the upright leg. How ...
*August 7, 2011 by Angel*

**Math**

Forensic scientists use the lengths of certain bones to calculate the height of person. A bone often used is the tibia (t), the bone from the ankle to the knee. A man’s height (h) is determined from the length of this bone using a function defined by the following formula: h(t...
*February 28, 2014 by Silvio*

**math**

The function H descibed by H(X)=2.75X+71.48 can be used to predict the height, in centimeters, of a woman whose humerus (the bone from the elbow to the shoulder) is x cm long. Predict the height of a woman whose humerus is 39 cm long. I have an answer of the height is 178.73 ...
*March 25, 2010 by KiKi*

**math**

an isoceles triangle given the base and a leg whose measure are 4cm and 3cm respectively?
*June 26, 2013 by odel*

**Math**

A toy manufacturer needs a piece of plastic in the shape of a right triangle with the longer leg 5cm more than the shorter leg and the hypotenuse 10 cm more than the shorter leg. How long should the sides of the triangles be?
*February 8, 2011 by Bethany*

**physics**

a rod 300 cm long is hinged in a wall its weight is 50N. it is supported by a leg from other edge and an external weight of 80N is placed on the rod 50 cm away from the leg end.. find the tension in the leg?
*August 26, 2012 by umair*

**physics**

Severe stresses can be produced in the joints by jogging on hard surfaces or with insufficiently padded shoes.If the downward velocity of the leg is 7.3m/s when the joggers foot hits the ground. If the leg stops in a distance of 1.1 cm. Calculate the force on the ankle joint. ...
*February 12, 2014 by Paul*

**Math word problem**

The hypotenuse of a right triangle is 22 m long. The length of one leg is 10 m less than the other. Find the lengths of the legs. I have so far let one leg be x the other leg will be x-10 x^2 +(x-10)^2=22^2 x^2+x^2-20x+100=484
*September 24, 2010 by Allie*

**Science**

In which way does the circulatory system rely on the skeletal system? Glucose is secreted by compact bone as an energy source for blood. Spongy bone stores minerals needed by blood cells. Bones provide a source of oxygen to blood. Blood cells are produced in bone marrow.
*May 6, 2014 by Anonymous*

**Math**

The length of one leg of a right triangle is 8ft. The length of the hypothenuse is 2feet longer than the other leg. Find the length of the hypothenuse and the other leg. The length of the hypothenuse is _______ ft. The length of the other leg is ___________ft.
*February 20, 2014 by Pam*

**Algebra**

A lot is in the shape of a right triangle. The shorter leg measures 90 meters. The hypotenuse is 30 meters longer than the length of the longer leg. How long is the longer leg?
*April 22, 2011 by Jennifer*

**Math**

The shorter leg of a right triangle is 14 feet shorter than the longer leg. The hypotenuse is 26 feet. How long is each leg?
*December 4, 2010 by Megan*

**physics - leg cast**

The leg and cast in the figure below weigh 280 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 105 N. Determine the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus cast.
*May 25, 2010 by lau*

**math**

in isosceles angle ABC, the length of leg AB is 2x+10 and the length of the leg BC is 4x - 18. Find the length of each leg.
*October 2, 2012 by chan*

**physic**

Depending on how you fall, you can break a bone easily. The severity of the break depends on how much energy the bone absorbs in the accident, and to evaluate this let us treat the bone as an ideal spring. The maximum applied force of compression that one man’s thighbone can ...
*January 20, 2014 by nada*

**math**

The hypotenuse of a right triangle is 1 cm more than twice the shorter leg, and the longer leg is 9 cm less than three times the shorter leg. Find the lengths of the three sides of the triangle..
*March 21, 2013 by nikki*

**biology**

In humans, dietary calcium helps maintain strong bones and teeth. Calcium is absorbed into the blood stream by the cells that line the small intestine. Bone cells called osteoblasts absorb calcium from the blood and use it to form the mineralized part of bone called bone ...
*September 6, 2007 by Jen*

**Geometry**

I need help in this problem: A 14-foot ladder is leaning against a house so that its top touches the top of the wall. the bottom of the ladder is 8 feet away from the wall. which of these can be used to find the height of the wall? A. in a right triangle with 14-foot leg and ...
*March 27, 2014 by Alex*

**Algebra, URGENT!!!**

1) The first leg of a right triangle is 6 cm longer than its second leg. If the hypotenuse has a length of 8 cm, find the exact lengths of the two legs. First Leg: Second Leg: 2) The length of a rectangle is 10 m longer than its width and the area of the rectangle is 480 m2. ...
*November 20, 2013 by Bailey*

**calculus**

find the volume of the solid whose cross section is perpendicular to the x axis from isosceles right triangles and has a leg that run from the lines y=-x to the line y=.5x
*April 11, 2011 by Eli*

**Radioactivity**

A bone fragment has lost 75% of its original carbon-14. What is the age of the bone fragment? My answer is about 11 000 years but I don't know if its right
*April 21, 2014 by Aditya*

**Chemistry**

A skull fragment found in 1936 at Baldwin Hills, California, was dated by 14C analysis. Approximately 100g of bone was cleaned and treated with 1 M HCl(aq) to destroy the mineral content of the bone. The bone protein was then collected, dried and pyrolyzed. The CO2 produced ...
*May 21, 2009 by Sarah*

**Grammar**

Proofread and insert the proper punctuation. The x-rays revealed: an articular fracture of the tibia, a butterfly fracture of the fibula, and a longitudinal fracture of the femur. Answer: The x-rays revealed an articular fracture of the tibia, a butterfly fracture of the ...
*May 10, 2011 by Leslie*

**bio Anatomy**

What is the difference between bone matrix (compact) and intercellular matrix (in spongy bone)? Thanks
*March 7, 2012 by rebekah*

**Bio Anatomy**

What is the difference between bone matrix (compact) and intercellular matrix (in spongy bone)? Thanks
*March 7, 2012 by rebekah*

**Biology**

The half life of carbon 14 is 5700 years. If the carbon 14 level measured in a fossilized bone has only 1/4 of the original amount, how old in the bone?
*May 16, 2011 by Jennifer*

**Math**

"One leg of a right triangle is 50.A line parallel to the other leg and at a distance of 20 from that leg cuts off a right trapezoid of area 320. What is the area of the original right triangle?"
*February 13, 2013 by Justin*

**Math**

A bone is found to have 45% of the original amount of carbon 14. If the half life of carbon is 5600 years, how old is the bone. Would I use the formula N=No e^kt?
*November 20, 2010 by Hannah*

**physics**

If a compressive force of 3.2×104N is exerted on the end of a 16cm long bone of cross-sectional area 4.4cm2 , by how much does it shorten? Use Ebone=1.5×1010N/m2, tensile strength of bone = 1.3×108N/m2.
*April 10, 2014 by hayley*

**physics **

A merry-go-round is stationary. A dog is running on the ground just outside its circumference, moving with a constant angular speed of 0.705 rad/s. The dog does not change his pace when he sees what he has been looking for: a bone resting on the merry-go-round one third of a ...
*March 1, 2011 by Anonymous*

**Human Physiology**

Bill damaged the spinothalamic tract on the right side of his spinal cord at the thoracic level. What would be impaired? 1) touch sensation of the right leg 2) touch sensation of the left leg 3) temperature sensation of the right leg 4) pain sensation of the left leg 5) 3&4 i ...
*November 13, 2011 by Cari*

**curriculum development**

Katie is two years old. it is probable that she can: A. flex her leg and kick a ball. B. push against the ball,but not really kick it. C. kick a ball with a straight leg. D. kick a ball with her leg and have arm opposition. I chosed A
*September 12, 2012 by lisa*

**Math**

A room is in the shape of a right triangle. The hypotenuse is 8 meters longer than the short leg and the long leg is 4 meters longer than the short leg. Find the length of each side. (ok, now how can it be done if I change each side to cm and km, then ft and yards?)
*February 21, 2011 by Julie*

**geometry**

Find the value of x in each right triangle. A.) short leg= 8 hyp= x and one angle equals 42 B.) short leg= 12 long leg= x and one angle equals 67 please help!!! i have a final tomorrow
*June 2, 2010 by monique n*

**Math 8th Grade**

Jane's garden is in the shape of a right triangle. One leg of the right triangle is longer than the other leg. The area of the garden is 63 square meters. What is the length of the longer leg?
*April 6, 2011 by Lily*

**geometry**

How many degrees is the base of your scalene triangle if the left leg at 35°and the right leg is 25°?
*August 10, 2011 by nikki*

**geometry**

If the smaller leg of a 30-60-90 triangle is 4 m, what are the lengths of the longer leg and the hypotenuse?
*January 2, 2011 by chris*

**math**

The shorter leg of a 30°–60°–90° triangle is 10. What are the lengths of the longer leg and the hypotenuse, to the nearest tenth?
*October 29, 2009 by marie*

**urgent math**

without graphing, find the vertex, the azis of symemtry, and the maximum value or the minium value.
*December 8, 2011 by Anne*

**math**

if the median to the hypotenuse of a right triangle measures 25 and a leg 14, find the measure of the other leg
*March 15, 2010 by chelsea*

**leg**

plz tell me sum facts about the leg
*November 30, 2007 by khs*

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