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Q. The femur is a bone in the leg whose minimum cross-sectional area is about 4.5 x 10-4 m2. A compression force in excess of 7.7 x 104 N will fracture this bone. Bone has a compression Young's modulus of 9.4 x 10^9 N/m2. (a) Find out the utmost stress that this bone can withstand. (b) What is the strain that exists under a maximum-stress condition?
500 J of work are completed to compress the gas while, in the same process, 1400 J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules.
A rod is initially at a uniform temperature of 0 o C throughout. One end is kept at 0oC , and the other is brought into contact with a steam bath at 100 o C.
Dan is gliding on his skateboard at 2m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 7.00m/s (as measured by an observer on the ground). Dan's mass is 50 kg and the skateboard's mass is 5.00 kg.
What is change in the car's kinetic energy KEf - KEo from A to B. How fast will the father be moving.
find the angular displacement of the propeller.
Dan is gliding on his skateboard at 4. He suddenly jumps backward off the skateboard, kicking skateboard forward at 8.00 (as measured by an observer on the ground). Dan's mass is 60 and skateboard's mass is 5.00 .How fast is Dan going as his fee..
Team B is pulling on a rope attached to the same anvil with the same force but in direction of 32 degrees S of E. What is the initial acceleration of the anvil.
blocks are lined up in a row on a frictionless table. How much force does the 8.0 block exert on the 7 block.
Pretend a person can walk only at a certain pace no faster, no slower. If you time her uninterrupted walk across a room of known length, you can compute her walking speed.
A high-speed photograph of a club hitting a golf ball. The club was in contact with a ball, initially at rest, for about 0.0028s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.8 102 ft/s, find out the average forc..
Two ants race across a table 62.0 cm long. One travels at 4.69 cm/s and other at 3 cm/s. When the first one crosses the finish line, how far behind is second one? Reply in units of cm.
What is an average velocity of the train throughout run
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