how fast would u have to throw a baseball for it to catch on fire? (explanation in step by step equations)

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Why is the use of carbon-14 limited