An object starts with an initial speed of 0 and moves with an acceleration 0.5m/s² for 30 seconds THEN it keeps moving with constant speed for another 30 seconds AND the last 30 seconds moves with an acceleration-0.5m/s² until it stops . •DRAW A "VELOCITY- TIME" GRAPH•

did I solve it correctly?

thanks​

What is the increase in density of a medium due to wave travel?

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

The largest observatory complex in the world is on mauna kea, the tallest mountain on earth. what are some factors astronomers consider when selecting an observatory site? don’t forget practical ones. should astronomers, for example, consider building an observatory on denali (mount mckinley) or mount everest?