The specific heat of copper is about (1.4 joule/gram°C. How much heat is needed to change the temperature of a 30-gram sample of copper from 20.0°C to 60.0°C?​

Avariable that is not being directly tested during an experiment should be

One nanometer is equal to how many meters?

Aplanet similar to earth has four moons roughly the same distance away. the moon that will most affect tides on the planet is the one that has the greatest a) mass. b) volume. c) density. d) amount of water.