Aforce of 7.50n is applied to a spring whose spring constant is 0.298n/ cm. find its change in length

a.   mass number from atomic number

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods