The answer is B. On a sunny day, the air over a lake will be cooler than the air over the bordering land.
You find the net force by subtracting.
Answer:
A. The waves in the water travel faster and at a higher frequency than they travel on land.
Explanation:
The main reason why human ears can hear dolphins' vocalizations while under the water but cannot hear them well on land is because water is denser than air and air particles travel faster in denser particles.
Denser particles also ensures that the frequency of the waves move faster which in turn produces a faster and louder result.
The answer is A. Friction
hope this helps :)
Both of your answers are correct
