Copper zinc and magnesium do not contain any iron. What word is used to describe these types of metals?

Which statement best describes how private industry decides where to spend the money on research and development

Akg a of 55 m at an of 11 ? . if is at 98 km/h, be ?

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j