What are the answers for numbers 2 & 3?

An object's buoyant force and weight mean the same thing.a. trueb. false

Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided

Matter that emits no light at any wavelength is called