John purchased 13792 kWh of electricity and 2284 CCF of natural gas in a year. The cost of electricity is 6.4 cents/kWh and that of natural gas is 1.7 dollars per CCF. Assuming that 1 CCF of natural gas has 100,000 BTUs and 1 kWh has 3412 BTUs, what is the average cost of 1 MMBTUs for John.

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction