Recent content by dumguy

it takes 40.5 m for the car to stop and yes it hits the bus. If you attempt to use the formulas individually it does not work out. If you input the entire piecewise into your TI-83 it should give the right answer.

perhaps if i translate the parabola up 13.5 units and right 0.75 units we can get a better result. Something is lost in the translation from 2 individual functions to a piecewise. Any ideas are welcome and appreciated.

1. Homework Statement [/b]A car is driving at a constant velocity of 18 m/s. There is a school bus on the road with its stop sign extended. The car is 40 metres away from the bus when the driver sees the stop sign. There is a time delay of 0.75 secondsbetween the time the driver sees the sign...

Thanks to all that took the time to have a look at this thing. My text is full of misprints and omissions.

circuit diagram

npn by the symbol

NPN and PNP

circuit

I have a circuit diagram to analyze that looks wrong to me. It is fairly straight forward and I will attempt to describe it. It is an unlabelled power source with the neg terminal feeding a photocell, that part I understand. Here is the problem, that same neg branch of the circuit also feeds...

Homework Statement circuit diagram showing what has been identified as an NPN transistor with the collector and base connected to neg and emitter conected to pos. The base is also switched by a photodiode and the emitter is supplying a light bulb.Question asks when will the light come on.Can...

Just learning the language for inputting my equations, exponents and all that.

[SOLVED] my anwers does not look right Homework Statement A car has a weight of 15000N. If the pressure of each of the tires is observed to be 225KPa, calculate the area of each tire that is in contact with the pavement. Homework Equations A=F/P The Attempt at a Solution...