What type of machine is a ramp for wheelchairs?

a. mechanical machine
b. compound machine
c. simple machine
d. complex machine

Where are each of the three particles located within the atom?

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

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?