Using the black numbers on the stopwatch to answer the questions.

what is the most accurate reading of seconds as indicated by the long second hand?

look at the divisions between 2 and 4. what level of precision does this stopwatch have based on the divisions marked on its face?

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?

Which of the following is true about the speed of light? it depends on the wavelength.