Where does a spring in a ball point pen or a pogo stick get its energyWhen an object moves, where does the energy come from?

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

When an experimenter draws a conclusion that he assumes will apply to all situations set up similarly to his test situation, even though he cannot possibly have examined all possible test scenarios, the experimenter is using deductive reasoning inductive reasoning abductive reasoning subjective reasoning