The blood pressure in human body is greater at the feet than the brain

Yes,
The height  of the blood column at the feet is large as compared to at the brain . Hence, blood pressure is more at feet than at the brain.

Blood needs to be pumped at a more constant rate travelling further than the brain, as the heart is nearer to the brain. 

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

Milliseconds. . . . . .