What is the average speed of a boat that covers 104 miles in 5.06 hours

You are sitting on the beach and wondering about the properties of mechanical waves. describe them in terms of ocean waves.

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

What causes the formation of ocean currents?