(a)Explain (i)why the rate of loss of thermal the walls of the flask by conduction is very low.
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(ii)why the rate of loss of thermal energy through the walls of the flask by radiation is very low.
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(b)Suggest with reasons, what must be added to the flask shown in the pic in order to keep the liquid hot.
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Alow cost, low earth orbit (leo) satellite is to be fabricated at a university, for subsequent launch by rocket. what are the constraints and objectives for selection of a material suitable for the satellite bus (i.e. the structure)? explain each in brief. (15 marks) b)suggest sources of data which could support the selection of materials for applications in space. (5 marks) c) set weights for the objectives listed in (2a) using the digital logic method. (5 marks)

How is the gravitational force related to the distance between two objects?

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points