A geostationary communications satellite orbits the earth directly above the equator at an altitude of 36800 km. Calculate the time it would take a cell phone signal to travel from a point on the equator to the satellite and back.

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Which type of basaltic lava flow has a fairly smooth

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter