Physics, 21.08.2019 03:30 theman300045
In a die-casting of aluminium, heat transfer is limited by the metal-mould interface, which has a heat transfer coefficient k 2.1 kj m2 k-1 s-1 the following values apply 933 k melting temperature of aluminium, t density of solid aluminium, ps=2700 kg m- latent heat of fusion of aluminium, hm 390 kj kg- = given that the thickness of solid aluminium after 10 s is 1.29 cm, use the equation for interface resistance limited solidification k(t-to) s t. pahm to calculate: (0) the gradient of a graph of s against t, in ms1, to 3 significant figures (u) the temperature of the mould in c, to the nearest degree (take 0 c 273 k) gradient of s against t: ms to 3 s f temperature of mould oc to nearest degree
Answers: 2
Physics, 21.06.2019 20:30
Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.
Answers: 2
Physics, 22.06.2019 06:30
From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.
Answers: 1
Physics, 22.06.2019 16:20
Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus
Answers: 1
Physics, 23.06.2019 02:00
Explain the difference in reactivity of the elements based on their electron configurations.
Answers: 1
In a die-casting of aluminium, heat transfer is limited by the metal-mould interface, which has a he...
Mathematics, 21.04.2021 06:00
Mathematics, 21.04.2021 06:00
Advanced Placement (AP), 21.04.2021 06:00
Mathematics, 21.04.2021 06:00
History, 21.04.2021 06:00
Chemistry, 21.04.2021 06:00
Mathematics, 21.04.2021 06:00
Computers and Technology, 21.04.2021 06:00
Mathematics, 21.04.2021 06:00
Social Studies, 21.04.2021 06:00
Mathematics, 21.04.2021 06:00