What is the formula that you could use to calculate final velocity is masses not known?

What part of the ear is names after tools, such as the hammer and the anvil?

Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3

What is the coldest temperature ever recorded in san antonio?