Porque alguno satélites de telecomunicaciones puede permanecer en una orbita geoestacionaria

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

What is the state of matter with a specific volume but no definite shape

In a particular chemical reaction, the energy of the reactants is 30 kj and the energy of the products is 5 kj. 
 the maximum energy of the system is 40 kj. sketch a potential energy diagram for this reaction. make sure to label the energy of the reactants, the energy of the products, the activation energy, and the enthalpy change for the reaction.