6.A. The following is a nuclear equation for which type of decay process? (1 point)

B. Describe this type of decay process. What are the other two types of decay? How are the types of decay different? (4 points)

C. What is the name for the length of time of a decay process? How can this be used to calculate the amount of a radioactive element, compared to its original amount? (4 points)

7.A. Describe Einstein's famous equation, E = mc2, using two well-known conservation laws. Give an example of when you would use this equation. (4 points)

B. Describe fission and fusion. Explain how Einstein's equation relates to the concepts of fission and fusion. (5 points)

8. Describe an alternative energy source that involves the earth. (2 points)

i think the answer is a and b

i wish you luck

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.

god i hope this !