The mass of the nails and copper sulfate solution used in this investigation was 250g. The mass of the copper and iron sulfate solution produced in this investigation would be 250g. 1. less than
2. equal to
3. greater than

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?