# Search results

1. ### Angular speed and angular velocity

hi here you are, the DC motor is put into a subsytem i have just shown you the whole block diagram to make it easier to interpret. Thanks Mayur
2. ### Angular speed and angular velocity

hi i have two different systems (i have tried to upload them but they both exceed the size of the upload limit). One is a dc motor block diagram (it has a PID at its controller) the other is a bldc motor model with a PID controller input. The block diagram of the DC motor consists of an armature...
3. ### Matlab, for loop, sawtooth function

[b]1.Hi! i am having problems plotting a sawtooth waveform without the use of the sawtooth function in matlab. I am required to produce a sawtooth waveform with a duty cycle of 30% using nested loops (for loop within a for loop) i have managed to get the ramp function from one, for...
4. ### Mass of a triangle

i think i got it now the answer is 40kg? is this correct
5. ### Mass of a triangle

thanks for that i have now got to the part of 10x/2 dx im not to sure how to integrate this, should i do it in parts or substitution?
6. ### Mass of a triangle

hi i am having great difficulties doing this i was wondering if anyone could start me of thanks, a triangle is formed by the x, y - axes and the line x+2y=4. the density is given by f(x,y)= 2y. I know that i need to convert the line for y but from there on i have no idea, much abliged

1a=1c/1s
8. ### Electron charge

i was stuck on this equation if a current of 2 A flows through a lamp when it is connected by copper wire of cross-sectional area 1 mm2 to the terminals of a battery. how many electrons will leave the negative terminal of the battery in 3 seconds? (obiviously the charge of electrons is...