Calculate the acceleration of airplane that starts at rest and reaches the speed of 45m/s in nine seconds

Which of the following is the best name for mgcl2

Which of these statements best explains how the hydrosphere interacts with the atmosphere to affect global climate? mountains block rain clouds and cause changes in global rainfall and evaporation. humans burn fossil fuels to produce greenhouse gases which cause global warming. humans cut down trees which affects the amount of oxygen in different parts of the globe. greenhouse gases, like carbon dioxide, dissolve in oceans and prevent global warming.

Whithin which type of system is neither the total mass nor the total energy conserved ? a. open b. connected c. isolated d. closed