A teacher placed 80 g of ice in a sealed plastic container at room temperature.
How many grams of liquid water will be in the plastic container when the ice
has melted?
A. Slightly less than 80 g
B. Exactly 80 g
C. Slightly more than 80 g
D. The exact amount is unknown.

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j