If the 50 kg object slows down to velocity of 1 m\s how much Kinect energy dose it have

  the mississippians were considered to be  horticulturalists, which means they were

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?