It is desired to increase the density of aluminum from its normal value of 2.70 x...
What pressure change AP in Pa is required to compress aluminum by 2.55%? The bulk modulus of aluminum is 7.00 x 100 N/m².
13. The resistivity of aluminum at 25 'C has been measured to be 2.72 x 10-8 0 m. The thermal coefficient of resistivity of aluminum at 0 C is 4.29 x 10-3 K-1. Aluminum has a valency of 3, a density of 2.70 g cm3, and an atomic mass of 27 a. Calculate the resistivity of aluminum at-40°С. (Ans: 2.03 x 103 Ω m) b. What is the thermal coefficient of resistivity at-40'C? (Ans: 5.23x 103K c. Estimate the mean...
(e) A solid cube of mass 100 g and density 2.70 x 103 kg m-3 is subjected to a shear force of 5.00 kN. The shear deformation is 5.00 μm. Find the shear moduļus.
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4 A nonviscous blood (density 1060 kg/m3) passes through a horizontal artery. If the speed of blood changes from 4m/s to 8 m/s, as it enters a narrow region, the change in pressure Ap is A) 2120 Pa B) 4240 Pa C) 25440 Pa D) 50880 Pa
(a) Assume that the density of air decreases exponentially with altitude from its surface value of , where Hp is the scale height for density). Use hydrostatic balance and the vertical profile of the air density to derive an expression for the scale height that includes the density of surface air po. (4 pts.) (b) Use the expression from (a) to calculate the scale height on Earth, taking pa = 1.25 kg/m^3.
A liquid medicine is injected into a patient from an IV bag elevated h-0.800 m above the needle, see figure. The needle is placed horizontally. The needle is 3.00 cm in length and 0.400 mm in diameter. Assume the average gauge pressure inside the vein is 1.28 x 103 Pa; the viscosity of the medicine is 2.00 10-3 Pa-s; and the density of the medicine is 1.05x 103 kg/m. (1) Calculate the pressure difference between the input and output of...
Water (density = 1.0 x 103 kg/m3 ) flows through a horizontal tapered pipe. At the wide end its speed is 4.0 m/s. The difference in pressure between the two ends is 4.5 x103 Pa. The speed of the water at the narrow end is: A. 2.6 m/s B. 3.2 m/s C. 4.0 m/s D. 4.5 m/s E. 5.0 m/s
The sperm whale can dive to a depth of 2250 meters. For sea water with a density of 1020 kg/m3 what is the difference in pressure at this depth as compared to the surface? Supply your answer in atmospheres" (atm), where 1 atm approximately equals 1x105 Pa. (This is an incredibly large pressure. Human bodies would be crushed. The deepest human dive recorded was around 300 m, and even then, the diver had to spend 12 hours to surface from...
A particle of mass m = 2.70 kg moving along the x axis from x = 0 to x = 10.6 m experiences a net conservative force in an isolated system given by F = 5x − 4, where F is in newtons and x is in meters. (a) What is the work done on the particle by the force F? J (b) What is the change in the potential energy of the system during this motion? J (c) If...
A solid aluminum sphere with the density p_n = 2700 kg/m^3 is suspended in air from a scale that reads 13.06N. the sphere is then submerged in a liquid with an unknown density . the scale then reads 8.706 n. work out an expression for the density of the liquid in terms of the quantities and then calculate the density of the liquid.