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What is the percent strain when a steel bar of 107 mm2 cross section is loaded by 83,826 N. Take the Youngs modulus of steel to be 205 GPa.
A block with mass m = 8.0 kg sits on an inclined plane. The angle of the plane with the horizontal is θ = 25o. (The figure is not drawn to scale). A force F is applied to the block atan angle φ = 20o, as shown. The coefficient of kinetic friction ..
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
After sliding down a snow-covered hill on an inner tube, Ashley is coasting across a level snowfield at a constant velocity of +2.9 m/s. How fast do the two of them slide across the snow
How does VOPT(Optimum Climb speed) compare to VY(Max Rate of Climb)? Most transport airplane climb schedules are based on what type profile and why?
A bullet of mass 7.00g is fired horizontally into a wooden block of mass 1.26kg resting on a horizontal surface.What was the initial speed of the bullet
The mass of a string is 9.6×10-3 kg, and it is stretched so that the tension in it is 200 N. A transverse wave traveling on this string has a frequency of 170 Hz and a wavelength of 0.61 m. What is the length of the string?
A proton is traveling at a velocity of 10^5 m/s at 45 degree up from east (among x and y axes). At this time, Fg is the gravitational force near the earth acting straight down. Specify the force in diagram (magnetic force) and i, j and k-component.
The motion of the block from point A to point B
It takes a flea 1.0 x 10-3 sec to reach a peak speed of 0.74 m/s. If the mass of the flea is 0.45 x 10-6 kilogram, determine what is the average power required
a 25 microc point charge is placed 42 cm from an identical 25 microc point charge. how much work would be required by
A uniform horizontal lever of length 4.8 m pivoted at its mid-point is in equilibrium. The following forces are acting on the lever: an unknown upward force (force with upward vertical component) that makes an angle of 40 deg with the horizontal-left..
question1a piece of aluminium specific heat 0.910 kjkg 0c of mass 138 g at 74 0 c is dropped into a styrofoam cup
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