A scale model of the solar system, according to distances between planets, would fit all the planets and the Sun within the boundaries of a football field –ifEarth were the size of a peppercorn. In this activity, we compressed space. But scale models can also compress time. These can be called "temporal scale models."In this part of today’s lab, you will use the calendar of the year to show when significant events took place in the universe, which is thought to be 13.8 billion years! It’s so difficult to consider just how oldthe universe is, that if we compress timeto that of a calendar year on Earth, we can visually see how vast that time is. In this model, we will compress 13.8 billion years into one calendar year, which means that one secondon our calendar will be equal to 438 years. One dayon our calendar is equal to 37.8 million years. Here are the events you need to transcribe onto your graphic calendars. In the column on the right, calculate the approximate number of years before today that the event took place!

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

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the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.

114 m/s             thats the correct answer