The photo shows a sprinter on the starting blocks. When the
sprinter starts running, their left
foot exerts a force of 300N on
the block, over an area of
0.01 m. Calculate the
pressure exerted by their foot.
Give the correct unit.

Determine the maximum r-value of the polar equation r =3+3 cos 0

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.