Based on my profile picture who wants to date me keep in mind I’m only 15

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

How many atoms of nitrogen are in the chemical formula ni(w on