In order for exercise to be effective, it must substantially increase heart rate. true false

Name the non metal condut electricity

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?

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?