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A tensile specimen has a 10mm minimum diameter and a 50mm guage lenght. The stress and strain follow a linear behaivour before the applied load reaches 8 x 10^4 N and the elongation reaches 0.275mm within the 50 mm gauge lenght. Maximum load is reached at 10^5 N and fracture occurs at 9 X 10^4 N
a) what is the young modulus for this material?
Two identical conducting spheres are separated by a fixed center to center distance of 45 cm and have different charges, Find the inital charge on the spheres
Why do magnetic field lines contract longitudinally and exert a lateral pressure?
A 1500kg wrecking ball hangs from a 20m -long cable. The ball is pulled back until the cable makes an angle of 17.0° with the vertical. By how much has the gravitational potential energy of the ball changed?
A point charge of 9 µC is located at x = -3.0 cm, and a second point charge of -13 µC is located at x = +4.0 cm. Where should a third charge of +6.0 µC be placed
Water (? = 1.00E-3 Pa*s) is flowing through a horizontal pipe with a volume flow rate of 0.0149 m3/s. Calculate the radius of the horizontal pipe
A 1 kg ball is attached to a 2 m long piece of very light string and suspended in such a way that it can freely swing and it passes just above the ground.
The transverse displacement (y) of a wave is given as a function of position (x in meters) and time (t in seconds) by the expression to the right. Determine the wavelength, frequency, period, and phase constant of this waveform.
A 542 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 1.9 meters. What is the speed of sound in the substance
If 100,000 MHz radar waves are incident on a plane coated with a polymer whose index of refraction is n = 1.50, how thick would you make the coating
A loudspeaker diaphragm is producing a sound for 2.63s by moving back and forth in simple harmonic motion. How many times does the diaphragm move back and forth
q1. a ski jumper has 1.2 acute 10 j of potential energy at the top of the ski jump. the friction on the jump slope is
A plane move through the air. This results in the air under thewing moving at speed v=50 m/s. what is the lift exerted on the plane in Newtons
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