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A gymnast does a one handed handstand. The humerus, which isthe upper arm bone between the elbow and the shoulder joint, may beapproximated as a .30 m long cylinder with an outer radius of 1.00x 10 to the negative 2 m and a hollow inner core with a radius of4.0 x 10 to the negative 3 m. Excluding the arm, the mass ofthe gymnast is 63 kg.
a) What is the compressional strain of the humerus?
b) By how much is the humerus compressed?
An airplane with a mass of 2.6*10^6 kg. has the air flow past the lower surface of the wings at 100 m/s. If the wings have a surface area of 1200 m2, how fast should the air flow over the upper surface of the wing if the plane is to stay in the ai..
A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, Find the velocity (magnitude and direction) of the ball just before the collision
In a Compton scattering experiment, the scattered electron is observed to move in the same direction, what is the scattering angle of the photon
A crate whose mass m is 360 kg on the bed of a truck that is moving at 120km/h. What force (assumed constant) acts on the crate during this time
A highway is to be built between tow towns, one of which lies 30.7 km south and 72.2 km west of the othe, What is the shortest lenght of highway that can be bult between the tow towns
Find the smallest particle size (density 2.65 grams per cubic cm) that will be removed in a horizontal grit chamber 10 meters long and 1.0 meter deep if the flow rate is 1000 cubic meters per hour. Suppose temperature is 25 ºC.
An electron is released from rest at x=0 in a region where the electric field is . Find the speed of the electron when x = 2.5 cm
Calculate the speed of block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across capacitor after the dielectric is removed is measured to be 200 V.
In adding, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
A 3.0 m long rigid beam with a mass of 125 kg is supported at each end. An 65 kg student stands 2.0 m from support 1. How much upward force does each support exert on the beam
A meteor streaking through the night sky is located with radar, its has moved to point B, Find the x component of its average velocity between A and B
A 50g marble moving at 2.2m/s strikes a 30g marble at rest. Assume the collision is perfectly elastic and the marbles collide head-on. A.What is the speed of the first marble immediately after the collision? B.What is the speed of the second marbl..
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