The identity of an element can be determined by observing its emission spectrum. true false

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.