What is the information gathered in an investigation is called

Why is the use of carbon-14 limited

The smallest particle of an element that retains its identity in a chemical reaction. true or false

Aheat engine that operates on a carnot cycle has an efficiency of 0.420 when its low-temperature reservoir is at 10 ∘c.part aby how many degrees celsius must you increase the temperature of the high-temperature reservoir to increase the efficiency to 0.600 if you continue to use the same low-temperature reservoir?