Crystal is trying to get in shape for softball season so she takes a hip pop dance class at the gym for 45 minutes three days a week she wears a heart rate monitor and finds that her heart rate reaches one 25 bpm but her target heart rate zone is 142 through one 80 bpm which of the following because she do to get her heart rate into the target zone

The ability to make things happen is also called a. heat b. force c. matter d. energy

You are standing on a boat. which of the following strategies will make the boat start moving? a. pushing the mast b. throwing some cargo out of the boat c. pushing the front ofthe boat d. pushing another passenger

Which of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.