Physics, 03.07.2021 18:20 dxpebetty64
2. Metal alloys shown in the Table demonstrate different percent of elongation (%EL) for a specimen with
gauge length of 50 mm. Calculate the fracture length (l āfinaleā) for each metal and then arrange them ascendingly
in terms of ductility.
Answers: 2
Physics, 22.06.2019 20:00
An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.
Answers: 2
Physics, 23.06.2019 01:00
Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?
Answers: 2
Physics, 23.06.2019 06:00
The frequency of a tuning fork can be found by the method shown. a long tube open at both ends is submerged in a beaker of water, and the vibrating tuning fork is placed near the top of the tube. the length l of the air column is adjusted by moving the tube vertically. the sound waves generated by the fork are reinforced when the length of the air column corresponds to one of the resonant frequencies of the tube. the smallest value for l for which a peak occurs in sound intensity is 7 cm. l what is the frequency of the tuning fork? the speed of sound in air is 345 m/s. answer in units of hz
Answers: 2
Physics, 23.06.2019 06:30
Asquare isothermal chip is of width w=5 mm on a side and is mounted in a substrate such that its side and back surfaces are well insulated; the front surface is exposed to the flow of a coolant at tinf=15 Ā°c. from reliability considerations, the chip temperature must not exceed t=85 Ā°c. if the coolant is air and the corresponding convection coefficient is h=200 w/m2 x k, what is the maximum allowable "power" of the chip? if the coolant is a liquid for which h=3000 w/m2 x k, what is the maximum allowable power of the chip?
Answers: 2
2. Metal alloys shown in the Table demonstrate different percent of elongation (%EL) for a specimen...
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