Combustion reactions are exothermic or endothermic, and explain why.

An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75

Which object is most likely represented by a dot?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?