a boy pushes a 5 kg cart, starting at 0.5 m/s and accelerating to 3 m/s. How much work was done on the cart

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)

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Why should seat belts not be mandatory quick plz