The speed of sound v in a medium depends on its wavelength 2, the young
moduluse, and the densi...
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Physics, 21.06.2019 18:10
How does the space charge width change with forward and reverse bias? also, calculate the space charge width for a reverse bias of 4v on a silicon pn junction at t = 300k and doping concentrations of na = 5x1015cm-3 , nd = 5x 1016 cm-3 .
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Physics, 22.06.2019 13:30
The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.
Answers: 2
Physics, 22.06.2019 17:40
Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.
Answers: 2
Physics, 22.06.2019 18:50
Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle can be assumed at 30 deg
Answers: 2
Mathematics, 18.03.2021 21:20
German, 18.03.2021 21:20
Mathematics, 18.03.2021 21:20
Mathematics, 18.03.2021 21:20
Social Studies, 18.03.2021 21:20
Mathematics, 18.03.2021 21:20
Mathematics, 18.03.2021 21:20