Ben is exercising his pony on a large oval track. The long is trotting at a constant speed of 10 m/s around the track. Which statement can be made about the pony's acceleration

Frequency of electromagnetic waves that a radio station is assigned is called

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=

Convection currents are caused by differences in what two things?