The net force acting on this object is 200N to the left. What is the force of friction and air resistance combined if the thrust force is 500N?

The substances that are necessary for producing of certain hormones and that store and transport vitamins

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)

Observations show that interstellar clouds can have almost any shape and