Write the nature of charges on a glass rod and Silk cloth when they are rubbed with each other

pe = weightxheight = 2000x1000=2,000,000joules

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

this could be newton#'s law of cooling. the cooling curve is exponential