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The femur is a bone in the leg whose minimum cross-sectional area is about 3.4 x 10-4 m2. A compressional force in excess of 6.9 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 2.10 kg mass attached to a spring oscillates with a period of 0.375 s and an amplitude of 20.5 cm. Find the total mechanical energy of the system
A car was seen driving off the edge of a cliff at an angle of 10 ° above the horizontal. The cliff is 95m high and the car impacted the ground at a distance of 156m from the base of the cliff. What is the speed of the car.
A bird watcher meanders through the woods, walking 0.496 km due east, 0.754 km due south, find the magnitude (in kilometers) of the bird watcher's displacement.
Find the flux of Earth's magnetic field of magnitude 5.00 cross 10-5 T through a square loop of area 20.0 cm2
A 66 N m torque acts on a wheel with a moment of inertia 175 kg m2. If the wheel starts from rest, how long will it take the wheel to make one revolution? The system is released from rest and accelerates under the weight of m2.
Four charged particles are at the corners of a square of side, Determine the total electric force exerted on q
A Carnot engine whose high-temperature reservoir is at 680K takes in 570J of heat at this temperature in each cycle and gives up 350J to the low-temperature reservoir. What is the temperature of the low-temperature reservoir
A .14kg baseball with an initial speed of 28m/s rebounds with a speed of 34m/s after being struck with a bat. What was the average force between ball and bat
What is the ratio of the amplitude
An electromagnetic wave has an electric field strength of 145 V/m at a point P in space at time t. What is the electric field energy density at P
What is the average electric field strength in this region?
A person pulls a 26kg suitcase using a rope attached to the suitcase at an angle of 28 degrees to the horizontal. The coefficient of static friction of the suitcase with the floor is 0.3 and the coefficient of kinetic friction is 0.20.
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