The answer is C!! 100 kilometers per hour is an average speed.
Answer:
sorry I don't really know :P
Explanation:
Answer: A. Two waves have a displacement in opposite directions
Explanation:
Answer:
Final temperature of the mixture becomes

Explanation:
Here we know that heat given by the nail is equal to the heat absorbed by water
So here we know that heat to change the temperature is given as

so by equating the heat we have

now we have



