Answer a) is incorrect as sound does not travel in a vacuum.
Answer:
speed equals distance over time 50 divided by 5.
In my opinion it does. The more water the pot holds, the longer you need to wait for it to freeze. Since there is more water, some parts may not be completely frozen. An experiment you can try is to get an ice cube container and a pot. fill both of them and put them in the freezer for the same amount of time. When you take it out, the ice cubes should be frozen leaving the pot with cold water.
Answer is: 1973.17N aprox.
step by step in the pic below
