Answer:
Heat is added to a substance, but its temperature does not rise. Which one of the following statements provides the best explanation for this observation? the substance must be a gas. the substance must be a non-perfect solid. the substance undergoes a change of phase. the substance has unusual thermal properties. the substance must be cooler than its environment.
Answer:4s^-1
Explanation:Tangential Acceleration=v^2/r=(20)²/100=400/100
it depends on the atom . but in some cases it may explode
Mass= density x volume
1.3 kg/m^3 x ( 2.5x4x10) m^3
= 130 kg
Refractor, It's a refractor-esque telescope
