If Y is equals to 15 by 4 into 0.75 sin theta + cos theta the minimum value of Y is​

What happens to light waves from a star as the star moves away from earth?

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

True or false graphs must include scales that increase by the same amount