Tpt Which describes a frame of reference most likely to be used in high school physics lab motion experiments? O A. distances measured from the center of Earth
OB. positions determined relative to the observer's center of gravity
O c. fixed x, y, and z axes with a zero point on the floor
OD. positions measured from a zero point on the moving object

Difference between series and parallel circuits

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=

Which of these has some mechanical energy? a. an atom b. heat inside earth c. a book on a shelf d. the fire from a lit match