I'm not accurately sure if you're asking for why the bulb of a thermometer is in a cylindrical shape. So let me continue. The shape of the which is thin and cylindrical in the shape is the increase of the effect of mercury in the tube to rise and fall depending on the contact temperature.
An object with greater charge will exert a greater force on an object than an object with smaller charge would. However, if you consider two charges that exert a force on each other, regardless of the magnitude of charge, both charges will exert an equal force on each other because of Newton's third law.
Answer:
Fe - Element
Fe2O3 - Compound
Explanation:
From the given chemical formula for two substances, Fe and Fe2O3, Fe is an element while fe2O3 is a compound.
It is so because an element is consist of the same type of atoms while a compund is consist of different atoms under specific proportions. for example: Fe is an element while fe2O3 is a compound.
Hence, the correct answer is:
Fe - Element
Fe2O3 - Compound
Wave Speed = wavelength x frequency
