What is the minimum power (in watts) requirement of a fan which increases the velocity of air to 9.12 m/s at a rate of 3.45 m3/s. The density of air is 1.259 kg/m3. (Take g

Where do magnetic lines of force enter earth?

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=

An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?