I – A Time-scale Model of the Universe 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 – if Earth 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 old the universe is, that if we compress time to 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 second on our calendar will be equal to 438 years. One day on 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!

where is the circuit diagram ?

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.

there are no atoms