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The femur is a bone in the leg whose minimum cross-sectional area is about 4.3 x 10-4 m2. A compressional force in excess of 8.0 x 104 N will fracture this bone. Bone has a compressional Young's modulus of 9.4 x 109 N/m2.
(a) Find the maximum stress that this bone can withstand.
(b) What is the strain that exists under a maximum-stress condition?
A uniform solid disk with a mass of 28.3 kg and a radius of 0.514 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk, as drawing illustrates.
A converging lens with a focal length of 6.60cm forms an image of a 3.20mm -tall real object that is to the left of the lens. Where are the object and image located
A brick hangs from a string attached to the ceiling. When a horizontal force of 15 N is applied to the brick, What is the mass of the brick
The rectangle shown in Figure P3.57 has sides parallel to the x and y axes. The position vectors of two corners are A = 8.00 m at 50.0° and B = 12.0 m at 29.0°. Find the perimeter of the rectangle
Two narrow slits are illuminated by a laser with a wavelength of 549nm. The interference pattern on a screen located x = 4.50m away , Calculate the distance between the two slits
A 83.0-?F capacitor is connected to a generator operating at a low frequency. The rms voltage of the generator is 2.60 V and is constant. at what frequency will the fuse burn out
In open heart surgery a much smaller amount of energy will defibrillate the heart. Find the amount of stored charge
A modern sculpture has a large horizontal spring, with a spring constant of 276 N/m, that is attached to a 51.0-kg piece of uniform metal at its end, By how much has the spring stretched
A car speeds up from 50 mph to 65 mph to pass a truck. If this requires 7 seconds, what is the average acceleration of the car
When you look at a clock on a space ship zooming by you at a fair fraction of the speed of light, What does the driver of the space ship see
A 0.58 kg toy airplane is suspended from the ceiling by a 1.6 m long cord and rotates in a horizontal circle. If the cord makes an angle of 35 degrees with the vertical.
A 0.25 m long wrench is placed around a bolt and a 20 N force is applied halfway along the wrench at an angle of 30 degrees, What is the torque (in Nm) applied to the bolt from this force
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