Which element has atoms with valence electrons in a higher energy level than those of calcium (Ca)? (1 point)

oxygen (O)

lithium (Li)

bromine (Br)

cesium (Cs)

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)

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

What are the theoretical properties of a gas at a temperature of 0 kelvin?