Bob can throw a 500 g rock with a speed of 30 doing so (a) how much work does bob do on the rock (b) how much force, assumed to be constant, does (c) what is bob's maximum power output as he thrthe rock? ower output as he throws the rock? of the steel plate in the figure below for rotation about a steel plat ch12 calculate the moment of inertia perpendicular axis passing through the origin

Arock is dropped from a cliff and reaches the ground in 2.70s. at the same time another rock is thrown horizontally from the same height with initial x velocity of 0.95 m/s. what distance will in x will the second rock cover?

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)

What causes the formation of ocean currents?