Which would have more momentum, a 50 kg cheetah running at 80 km/h , a 500 kg horse also running at 80 km/h , or a 5000 kg elephant at rest? How do you know?

Which instrument is used to measure air temperature

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?