What object has no momentum? - a bird flying north - a car parked in a garage - a satellite orbiting earth -a truck with constant speed

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Explain why you think this diagram shows what happened to the carbon in the biodome.

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=