A 130. 3 g piece of copper (specific heat 0. 380 j/g･°c) is heated and then placed into 400. 0 g of water initially at 20. 7°c. The water increases in temperature to 22. 2°c. What is the initial temperature (in °c) of the copper? (the specific heat of water is 4. 184 j/g･°c)

If you measure your shoe size would it be considered qualitative data?

Which of the following words identify a question as absolute

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.