A 100,000kg iceberg at -5 oC breaks away from the polar ice shelf and floats away into the ocean which is at 5 oC. What is the final change in the entropy of the universe when the iceberg has completely melted and comes to T. E. with the ocean water? Specific heat of ice is 2010 J/kg

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

Which of the following is not am example of a polymer? protein nylon kevlar concreta