A skier starts down a 14 ∘ incline at 2.0 m/s, reaching a speed of 15 m/s at the bottom. Friction between the snow and her freshly waxed skis is negligible. How long does it take the skier to reach the bottom?

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)

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

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