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?

conduct a laboratory test for the metal

design a prototype aircraft to tested

review any necessary adjustment

launch the new material as an alternative aircraft material;

Explanation:

A. before any decision is taken, or any conclusion is made, a destructive and non destructive test should be conducted on the metal.

this test includes:

1. bearing capacity test,

2. shear test

3. Ductility test

4. hardness test

5. Torsion test

6. heat resistance test

7. accuracy and durability test

8. corrosion resistance test... e.t.c

After this test is conducted, necessary stability and safety calculation will be done to know the best material that is safe and cost effective.

B. design a prototype aircraft to tested: A prototype aircraft is constructed using the normal process of aircraft construction and its is being test run.  

C. review any necessary adjustment: Any review noticed will be work on.

D. launch the new material as an alternative aircraft material;

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

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.