1) Determine the following:
a) The force acting on a 1 m2 surface corresponding to a 1 kPa pressure applied over the entire surface.
b) The work done lifting a 10 N (Newton) weight vertically upwards 20 m.
c) The density of air if the specific volume is 0.85 m3/kg.
d) The gravitational potential energy of a 25 kg mass 40 m above a reference level.
e) The kinetic energy of a 100 kg object travelling at 20 km/h.