Recent content by rdecker

Are there any of you scholars out there that use math ml? I have been frustrated by the lack of consistency in browser ability to display math ml. IE in particular is a pain. Comments or solutions are welcome.

uh huh yea verily.

yes, but Completing the square gives you the vertex form but the roots are not immediately solved.

ok! I've been waiting for this. Infinity is a bunny rabbit with blue fur.

quadratic You're quite right. If your goal is to find the roots then it is probably easier to program the quadratic formula into your calculator and enter a,b and c. I teach math in a high school and I get my students to learn how to write the program early in the course. However, I appreciate...

Shouldn't that be "the only possible rational roots are"

piece of string the piece of string which is attached to the bar.

total time If you haven't got it by now the total time is 0.3 +1.5 + 0.3 = 2.1 s. Since the velocity is zero at it's maximum height you can divide the time in half to find how long it takes the ball to fall from its maximum height to the ground. Then use that time to calculate distance and then...

Yes the resultant velocity vector is NW but the change is SW. What textbook are you using?

energy transfer Well yes the faster the car the greater the kinetic energy. In fact it is proportional to the square of the velocity so increasing velocity has more of an effect than increasing mass. When the car hits anything that energy will be transferred. How, though is a matter for...