3 A particle moves along the x axis. Its position varies with
time according to the expression x = -4t + 2t² , where (x) is
in meters and (t) is in seconds.
o Determine the displacement of the particle in the time
intervals (t = 0) to (t =1 s) and (t = 1 s) to (t = 3 s).
o Calculate the average velocity during these two time
intervals.
o Find the instantaneous velocity of the particle at (t =
2.5 s).

it is because acrylic blanket have acrylic textile fiber

explanation:

its is better than wool blanket

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

the answer is a. hope this .