X-Rays at different wavelengths provide scientists studying objects in space with information about which of the following? object temperature

object composition

object density

magnetic field of an object

All of the above.

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.

Wavelength divides in half and speed stays the same.