Classify the following elements as halogens alkali metals alkaline earth metals, transition elements or inner transitional elements calcium, gold, iron, magnesium, plutonium, potassium, sodium and uranium

Calculate the kinetic energy of earth due to its spinning about its axis. krot = j compare your answer with the kinetic energy of the orbital motion of earth's center of mass about the sun. assume earth to be a homogeneous sphere of mass 6.00 1024 kg and radius 6.40 106 m. the radius of earth's orbit is 1.50 1011 m.

Debris produced by mining is called

Relative to the ground below, how many joules of potential energy does a 1000-kg boulder have at the top of a 5-m ledge?