Aspacecraft on its way to mars has small rocket engines mounted on its hull; one on its left surface and one on its back surface. at a certain time, both engines turn on. the one on the left gives the spacecraft an acceleration component in the x direction of ax = 5.10 m/s2, while the one on the back gives an acceleration component in the y direction of ay = 7.30 m/s2. the engines turn off after firing for 150 s, at which point the spacecraft has velocity components of vx = 3500 m/s and vy = 4046 m/s. what was the magnitude and the direction of the spacecraft's initial velocity before the engines were turned on? express the magnitude as m/s and the direction as an angle measured counterclockwise from the +x axis.

Explanation:

Given

acceleration in x direction

Final velocity in x direction

time taken=150 s

let initial velocity in x direction be

Now solve for Y direction

ACW from x-axis

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

part 1: which substance has a higher solubility?

a

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by