The formula $f = \frac{9}{5} c + 32$ can be used to convert temperatures between degrees fahrenheit ($f$) and degrees celsius ($c$). how many degrees are in the celsius equivalent of $-22^\circ f$?

Plss anybody know how to do this? ? i need the answers from a through d

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?