1. write a function hideshow that accepts two string arguments, an input string and a masking string. the masking string is a string consisting of ‘0’s and ‘1’s that has the same length as the input string. the function then returns a new string that is the same as the input string, except that it is masked. that is, in any position where the masking string contains a ‘0’ the input character is replaced by a ‘#’, whereas if the masking string contains a ‘1’, the character is unchanged. see the following sample output

Determine the time of the day and month of the year at which the peak sensible cooling load occurs for a top floor, north-eastern corner room of an office building in durban for the following conditions: floor area: 8 x 8 x 3 m east and north walls: 115 mm face brick (outside), 20 mm air space, 115 mm ordinary brick (inside) with 15 mm plaster roof construction: suspended plasterboard ceiling, 450 mm air space, 150 mm concrete, 75mm screed, waterproofing no heat transfer across other surfaces window area 3x 1,5 m high in north wall only. ordinary glass with venetian blinds. lights and occupants : from 07: 00 to 18: 00 average light density: 25 w/m2 number of occupants : 5 seated, light office work room temperature 24°c