Aradio wave has a frequency of 3.20 × 108 hz. what is the energy (in j) of one photon of this radiation? enter your answer in scientific notation. × 10 j

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good