Professor whitney has a sample of lead and a sample or iron. the samples have an equal mass. when she heats the samples the lead has the higher temperature. what can she conclude from the experiment?

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

Astate of matter all that has define volume and can flow is a(n)

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!