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September 1, 2014

Search: The femur is a bone in the leg whose minium cross-sectional area is about 3.60 10-4 m2. A compressional force in excess of 6.90 104 N will fracture this bone

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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

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 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

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

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

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
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
If a compressive force of 3.2104N is exerted on the end of a 16cm long bone of cross-sectional area 4.4cm2 , by how much does it shorten? Use Ebone=1.51010N/m2, tensile strength of bone = 1.3108N/m2.
April 10, 2014 by hayley

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

Physical Education
Suppose that blood flows through the aorta with a speed of 0.35 m/s. The cross-sectional area of the aorta is 2.0x10-4 m2. (a) Find the volume flow rate of the blood (b) The aorta branches into tens of thousands of capillaries whose total cross-sectional area is about 0.28 m2...
May 13, 2013 by Janaiby

physics
(a) Find the magnitude of the total force of the traction apparatus applied to the leg, assuming = 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

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 mans thighbone can ...
January 20, 2014 by nada

maths help
Hi MY question is if a cylinder has a volume of 72cm cubed and a cross-sectional area of 18cm squared. Work out the height of the cylinder Can someone show me how we do it by the steps The volume of a cylinder is given by volume = (cross-sectional area) x height so height = ...
April 23, 2007 by Ali

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

PHYS101
For a system,the cylinder on the left,at L,has a mass of 600kg and a cross-sectional area of 800centi meter squad.The piston on the right,at S,has cross-sectional area 25centi meter squad abd negligible weight.If the apparatus is filled with oil(DENSITY=0.78grams/centi meter ...
April 19, 2010 by KABELO

physics
a wire whose cross-sectional area is 4mm^2 is stretched by 0.1 mm by a certain load.if a similar wire double the area of cross-section is under the same load,then then elongation would be ans: 1)0.05mm
February 4, 2013 by kala

physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A2 = 0.0600 m2. The gas has a density of = 1.30 kg/m3. The Venturi meter has a cross-...
December 4, 2010 by student

physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A2 = 0.0900 m2. The gas has a density of = 1.50 kg/m3. The Venturi meter has a cross-...
December 6, 2010 by johnny

Cross-Sectional Area
The cross-sectional area of a beam cut from a log with radius 1 foot is given by the function A(x) = 4x(sqrt{1 - x^2}), where x represents the length of half the base of the beam. Determine the cross-sectional area of the beam if the length of half the base of the beam is 1/3 ...
February 22, 2008 by John

physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift system in order to lift...
June 9, 2012 by LL

Physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift system in order to lift...
June 9, 2012 by LL

Physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift system in order to lift...
June 9, 2012 by LL

Physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift system in order to lift...
June 9, 2012 by LL

Physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift system in order to lift...
June 10, 2012 by LL

Physics. Please help!
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift system in order to lift...
June 10, 2012 by LL

physics
Water flows steadily from an open tank into a pipe. The elevation of the top of the tank is 10.2 m, and the elevation at the pipe is 3.90 m. The initial cross-sectional area of the pipe is 6.4010^−2 m; and at where the water is discharged from the pipe, it is 2.3010^&#...
November 30, 2009 by AE

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

Physics
A total charge of 16C passes through a cross-sectional area of a nichrome wire in 4 s. How many electrons pass through the cross-sectional area in 16 s? This has to do with Electric current and so i know that means 16C = 16 x 10^-6 = 1.6x10^-5.
January 19, 2013 by Struggling Student

Physics
Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials are 3.97 and 1.97 . Obtain the ratio of the smaller cross-sectional area to the greater cross-sectional area.
June 13, 2012 by Beth

Physics
In a machine shop, a hydraulic lift is used to raise heavy equipment for repairs. The sys- tem has a small piston with a cross-sectional area of 0.063 m2 and a large piston with a cross-sectional area of 0.172 m2. An engine weighing 2800 N rests on the large piston. What force...
June 28, 2013 by M&M

physical
Water flow along horizanta pipe at cross sectional area 48cm which has a constriction at cross sectional area 12cm at one place if the speed at the water at the constriction point is 4m/s calculate the speep at the wide section
September 22, 2013 by Anonymous

physics
A net charge of 47 mC passes through the cross-sectional area of a wire in 19.0 s. (a) What is the current in the wire? 1 A (b) How many electrons pass the cross-sectional area in 1.0 min? 2 . electrons I got 9.3e+22 for B but its wrong
May 16, 2012 by Brianna

physics
A liquid (ρ = 1.65 g/cm^3) flows through two horizontal sections of tubing joined end to end. In the first section the cross-sectional area is 10.0 cm^2, the flow speed is 245 cm/s, and the pressure is 1.20 105 Pa. In the second section the cross-sectional area is 2.50 cm...
February 6, 2013 by dave

phys
Water flows steadily from an open tank into a pipe as shown in the figure. The elevation of the top of the tank is 12.3 m, and the elevation at the pipe is 3.80 m. The initial cross-sectional area of the pipe (at point 2) is 5.6010−2 m^2; and at where the water is ...
December 9, 2009 by ami

physics
A net charge of 47 mC passes through the cross-sectional area of a wire in 19.0 s. (a) What is the current in the wire? 1 A (b) How many electrons pass the cross-sectional area in 1.0 min? 2 electrons
May 11, 2012 by Alice

physics
A net charge of 47 mC passes through the cross-sectional area of a wire in 19.0 s. (a) What is the current in the wire? 1 A (b) How many electrons pass the cross-sectional area in 1.0 min? 2 electrons
May 14, 2012 by Amelia

physics A
A net charge of 47 mC passes through the cross-sectional area of a wire in 19.0 s. (a) What is the current in the wire? 1 A (b) How many electrons pass the cross-sectional area in 1.0 min? 2 . electrons
May 16, 2012 by confused

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

Physics
A wire of cross-sectional area 5.00x10^-6 m^2 has a resistance of 1.75 ohm. what is the resistance of a wire of the same material and length as the first wire, but with a cross-sectional area of 8.75x10^-6 m^2? I really want to understand what to do here, so detailed steps ...
February 12, 2013 by Jamie

physics
The maximum applied force of compression that one mans thighbone can endure without breaking is 7.6 x104 N. The minimum effective cross-sectional area of the bone is 3 x10-4 m2, its length is 0.54 m, and Youngs modulus is Y=9.4x109 N/m2. The mass of the man is 61 kg. He ...
November 12, 2012 by stressedstudent

Physics
A hydraulic lift in a garage has two pistons: a small one of cross-sectional area 3.70cm2 and a large one of cross-sectional area 210cm2 . Part A If this lift is designed to raise a 3100-kg car, what minimum force must be applied to the small piston? Part B If the force is ...
December 3, 2013 by Help! final next weel

phisecs
water is moving with a speed of 5 m/s through a pip with a cross-sectional area of 4cm^2 . the water gradual descends 10 m as the pipe cross-sectional area increases 8cm^2 . if the pressure at the upper level is 1.5*10^5 , the pressure at the lower level is ?
April 22, 2014 by w

physics ---- really dnt get this at all
A total charge of 25 mC passes through a cross-sectional area of a nichrome wire in 10 s. How many electrons pass through the cross-sectional area in 16 s? Choose one answer. a. 2.5 x 1017 electrons b. 2.5 x 1019 electrons c. 2.5 x 1016 electrons d. 2.5 x 1021 electrons
May 31, 2011 by ashley --- HELP PLEASEE!!!

AP PHYSICS HELP
One piston of a hydraulic lift holds 1.40*10^3 kg. The other holds an ice block (density= 917 kg/m^3) that is 0.076 m thick. Find the first piston's area. (Cross sectional area of the ice block = cross sectional area of the piston).
December 10, 2012 by JOHN

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

physics
The intake in the figure has cross-sectional area of 0.75 m2 and water flow at 0.41 m/s. At the outlet, distance D = 180 m below the intake, the cross-sectional area is smaller than at the intake and the water flows out at 9.6 m/s. What is the pressure difference between inlet...
January 28, 2011 by rock

Physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A2 = 0.0700 m^2. The gas has a density of ρ = 1.80 kg/m^3. The Venturi meter has a ...
November 19, 2012 by Jim

Physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A^2 = 0.0700 m2. The gas has a density of ρ = 1.80 kg/m3. The Venturi meter has a ...
November 23, 2012 by Sam

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
The total cross-sectional area of the load-bearing calcified portion of the two forearm bones (radius and ulna) is approximately 2.0 cm2. During a car crash, the forearm is slammed against the dashboard. The arm comes to rest from an initial speed of 80 km/h in 5.0 ms. If the ...
January 26, 2013 by monic

physics
When you stand on your tiptoes, your feet pivot about your ankle. As shown in the figure, the forces on your foot are an upward force on your toes from the floor, a downward force on your ankle from the lower leg bone, and an upward force on the heel of your foot from your ...
November 25, 2012 by Cassie

physics-please help!
The total cross-sectional area of the load-bearing calcified portion of the two forearm bones (radius and ulna) is approximately 2.5 cm2. During a car crash, the forearm is slammed against the dashboard. The arm comes to rest from an initial speed of 80 km/h in 4.2 ms. If the ...
October 27, 2010 by Erica

college physics
Please help! the below questions are driving me crazy. Thanks Larry King 1) Suppose that in a certain atmospheric situation, a falling raindrop, having an initial mass of 0.010g. collects smaller droplets by collision at such a rate that, after 10s, it has a mass of 0.020g g ...
February 5, 2009 by Larry King

Physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A2 = 0.0600 m2. The gas has a density of = 1.70 kg/m3. The Venturi meter has a cross-...
November 17, 2008 by kyle

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

mechanics
Sketch a stress-strain curve for which the stress is calculated using the actual cross-sectional area rather than the original cross-sectional area. Explain why this curve differtypical stress-strain curve
February 24, 2013 by dmkp

college Physics
Dear Sir, Please help. I am struggling with the below problems for a very long time. thanks Larry King 1) Suppose that in a certain atmospheric situation, a falling raindrop, having an initial mass of 0.010g. collects smaller droplets by collision at such a rate that, after ...
February 5, 2009 by Larry King

Physics
Suppose you wish to make a solenoid whose self-inductance is 1.2 mH. The inductor is to have a cross-sectional area of 1.2 10-3 m2 and a length of 0.048 m. How many turns of wire are needed?
October 4, 2007 by Mary

physics
Suppose you wish to make a solenoid whose self-inductance is 3.0 mH. The inductor is to have a cross-sectional area of 2.0*10^-3 m2 and a length of 0.052 m. How many turns of wire are needed?
February 16, 2008 by rick

Physics
Suppose you wish to make a solenoid whose self-inductance is 1.6 mH. The inductor is to have a cross-sectional area of 1.3 x 10-3 m2 and a length of 0.065 m. How many turns of wire are needed?
March 10, 2013 by Tonya

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.

physics
1. Air flowing through a vent pipe of cross-sectional area 21[m^2] is traveling 0.89[ms^-1]. What is the flowrate? [18.7 m3s-1] Answer with three significant figures (don't forget to round!) or N/A if there is not enough information to answer the question. 2. Before the vent ...
March 22, 2013 by Sean

Math
Let V be the volume of a pyramid of height 15 whose base is a square of side 5. Part a). Use similar triangles to find the area of the horizontal cross section at a height y. Part b). Calculate V by integrating the crosss-sectional area.
July 9, 2013 by Molly

Physics please help!
Suppose you wish to make a solenoid whose self-inductance is 1.2 mH. The inductor is to have a cross-sectional area of 1.2 10-3 m2 and a length of 0.048 m. How many turns of wire are needed?
October 6, 2007 by Mary

Physics
This problem compares some energy properties of two motor vehicles: For efficient car, use drag coefficient of .21 and a cross sectional area of 1.5m^2. For a light truck, use drag coefficient of .75 and a cross sectional area of 2.7m^2. Use 1.25 kg/m^3 for the density of air...
November 8, 2011 by Lo

physics
(a) Calculate the mass flow rate (in grams per second) of blood (ρ = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 35 cm/s. g/s (b) Assume that the aorta branches to form a large number of capillaries with a combined cross-sectional ...
January 26, 2013 by monic

Physics, URGENT!!!
We consider tobacco virus diffusing along a 0.47 m long tube filled with water. The cross-sectional area of the tube is unknown. The diffusion coefficient is found in Table 10.5, p. 319 in the textbook. A total amount of virus of 2.6 x 10-16 kg is transported in a steady state...
November 29, 2010 by Sydney

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 liquid ( = 1.65 g/cm3) flows through a horizontal pipe of varying cross section as in the figure below. In the first section, the cross-sectional area is 10.0 cm2, the flow speed is 288 cm/s, and the pressure is 1.20 105 Pa. In the second section, the cross-sectional area ...
November 11, 2012 by k

physics
a homeowner wishes to drain her swimming pool by siphoning the water, whose depth is h, into a nearby gully a distance H below it,where H is much larger than h.she uses pipe of cross-sectional area a, and the pool has surface area A.how long does it take to empty the pool if h...
June 8, 2014 by khomotjo

Physics
Suppose you wish to make a solenoid whose self-inductance is 1.8 mH. The inductor is to have a cross-sectional area of 1.60 10-3 m2 and a length of 0.049 m. How many turns of wire are needed? turns
April 10, 2013 by Anonymous

physics
(a) Calculate the mass flow rate (in grams per second) of blood (ρ = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 33 cm/s. Answer is in g/s (b) Assume that the aorta branches to form a large number of capillaries with a combined cross...
October 27, 2011 by caitlin

mechanics of materials
The following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length. Load(kN)/elongation mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67 /0.119 68 /0.137 69 /0.16 70 /0.229 72 /0.3 76 /0.424 84 /0.668 92...
February 3, 2013 by dmkp

mechanics of materials
The following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length. Load(kN)/elongation mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67 /0.119 68 /0.137 69 /0.16 70 /0.229 72 /0.3 76 /0.424 84 /0.668 92...
February 3, 2013 by dmkp

Physics repost
Posted by Mary on Saturday, October 6, 2007 at 5:13pm. Suppose you wish to make a solenoid whose self-inductance is 1.2 mH. The inductor is to have a cross-sectional area of 1.2 10-3 m2 and a length of 0.048 m. How many turns of wire are needed? For Further Reading Physics ...
October 10, 2007 by Mary

Physics
A liquid (density = 1.65 g/cm^3) flows through two horizontal sections of tubing. In the first section the cross-sectional area is 10.0 cm^2, the flow speed is 275 cm/s, and the pressure is 1.20 x 10^5 Pa. This tubing then rises 50 cm to the second horizontal section which has...
November 11, 2010 by Daniel

Physics please help!!
Water is flowing in a straight horizontal pipe of variable cross section. Where the cross-sectional area of the pipe is 3.5010-2 m2, the pressure is 5.30105 Pa and the velocity is 0.310 m/s. In a constricted region where the area is 12.9010-4 m2, what is the velocity?
March 20, 2011 by Megan

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
water flows along a horizontal pipe of cross-sectional area 48cm^2 which has a constriction of cross-sectional area 12cm^2 at one place. If the speed of the water at the constriction is 4 m/s, calculate the speed in the wider section. The pressure in the wider section is 1.0 x...
March 26, 2010 by Edwin

physics
water flows along a horizontal pipe of cross-sectional area 48cm^2 which has a constriction of cross-sectional area 12cm^2 at one place. If the speed of the water at the constriction is 4 m/s, calculate the speed in the wider section. The pressure in the wider section is 1.0 x...
March 26, 2010 by Edwin

College Physics
A wire P has resistance R. If the wire is stretched and its length is increased by 10%, what would be the percentage change in its resistance? (Assume the density of the wire remains constant) A) - 10% B) 0 % C) 10% D) 20% My thoughts: Since resistance is R = resistivity x ...
November 24, 2011 by Andrew

physics
Two conductors are made of the same material and have the same length. They each have circular cross sectional areas. The ratio of their radii is 2:1. they carry the same current. What is the ratio of the electrical potential across their lengths? i know that you use R=P(L/A) ...
April 22, 2009 by bobby

physics
The pressure of a gas in a container is estimated to be the force exerted per cross-sectional area. If a factor F=(20.0+/-0.5)N.acts on a rectangular cross-section of the container with dimensions x=(5.0+/-0.5). Calculate fractional change in pressure and percentage error in ...
August 28, 2014 by Nonhlanhla

Physics
A ruler is accurate when the temperature is 25C. When the temperature drops to -16C, the ruler shrinks and no longer measures distances accurately. However, the ruler can be made to read correctly if a force of magnitude 1.2 103 N is applied to each end so as to stretch it ...
April 5, 2008 by Katie

Physics
A ruler is accurate when the temperature is 25C. When the temperature drops to -16C, the ruler shrinks and no longer measures distances accurately. However, the ruler can be made to read correctly if a force of magnitude 1.2 103 N is applied to each end so as to stretch it ...
April 6, 2008 by jack

Physics
A ruler is accurate when the temperature is 25C. When the temperature drops to -16C, the ruler shrinks and no longer measures distances accurately. However, the ruler can be made to read correctly if a force of magnitude 1.2 103 N is applied to each end so as to stretch it ...
April 11, 2008 by Johnson

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

Physics
1. You have a large wind tunnel of cross-sectional area 0.61[m2]. The wind speed is 4[ms-1]. Assume air density is 1 [kgm-3]. The Drag is 2.3[N]. What is the coeffecient of drag for the shape that has diameter 7.32[cm]? . Use three sig. figs. or N/A if there is not enough ...
April 7, 2013 by Sean

physics
There is a heat flow through a block of cross sectional area 21.5 cm2 and length 39 cm when the temperature difference of 18 degree Celsius is established across the block. Find the rate of heat flow through the block, assuming it is made of aluminium with thermal conductivity...
October 11, 2010 by Anonymous

College Physics
As part of an exercise program, a 75 kg person does toe raises in which he raises his entire body weight on the ball of one foot. The Achilles tendon pulls straight upward on the heel bone of his foot. This tendon is 25 cm long and has a cross sectional area of 78 mm^2 and a ...
October 26, 2007 by Jen

another physics question
A liquid ( = 1.65 g/cm3) flows through two horizontal sections of tubing joined end to end. In the first section the cross-sectional area is 10.0 cm2, the flow speed is 275 cm/s, and the pressure is 1.20 105 Pa. In the second section the cross-sectional area is 3.50 cm2. a....
December 10, 2006 by Jen

Chemstry
A 4.1089 g piece of aluminum wire with a circular cross section is 42.06 cm long and has density of 2.6989 g/cm3. What is the volume of the wire and the cross sectional area of the wire in cm2?
September 17, 2012 by anonymous

mechanical properties of materials
following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) Elongation(mm) 5 0.005 10 0.015 30 o.048 50 0.084 60 0.102 64.5 0.109 67 0.119 68 0.137 69 0.160 70 0.229 72 0.300 76 0.424 84 0.668 92 0.965 100 1....
January 28, 2013 by dmkp

mechanical properties of materials
following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) /Elongation(mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67/ 0.119 68 /0.137 69/ 0.160 70 /0.229 72 /0.300 76 /0.424 84 /0.668 92...
January 28, 2013 by dmkp

mechanical properties of materials
following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) /Elongation(mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67/ 0.119 68 /0.137 69/ 0.160 70 /0.229 72 /0.300 76 /0.424 84 /0.668 92...
January 28, 2013 by dmkp

physics
Each Steel Rail is 8.0 m long and has a cross sectional area of .0025msquared. on a hot day, each rail thermally expans as musch as 3.0 X 10EE-3. if there were no gaps between the rails, what would be the force on the ends of each rail?
February 27, 2011 by Roxy

Physics
Calculate the ratio of the drag force on a jet flying at 1049 km/h at an altitude of 10.0 km to the drag force on a prop-driven transport flying at 560 km/h and at an altitude of 5.00 km. The density of air is 0.380 kg/m3 at 10.0 km and 0.670 kg/m3 at 5.00 km. Assume that the ...
March 6, 2013 by Heidi

Physical Education
(a) Calculate the average blood velocity in the major arties given that the aorta has a radius of 1.0 cm, the blood velocity is 30 cm/s in the aorta, and the total cross-sectional area of the major arties is 20 cm2 (b) What is the total flow rate? (c) On the assumption that ...
May 13, 2013 by Janaiby

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