Which material is the best conductor of thermal energy? O A. Metal O B. Rubber O C. Glass O D. Plastic

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?