3(x+y)=y
if (x, y) is a solution to the equation above and y=0,what is the ratio x/y?

When do you think it’s best to take the psat (what grade year / when in the year)?

What does the first stage of a multistage rocket do?

Ateacher attaches a ball to a meter long string and whirls it around in a horizontal circle at constant speed. the teacher explains that the string is what makes the ball go in a circle. why is the string necessary? a) the string is needed to apply a torque to the ball. b) the string is needed to push on the ball to get it up to speed. c) circle motion requires an inertia which is provided by the string. d) circle motion requires a force to give it a centripetal acceleratio