the blueprints to the deathstar that showed it one weakness
Check the bulb to see if it's is D1S or D2S, it is probably D2s. If you can't tell, the ignitor (what plugs righ tinto the bulb) will tell you. A square ignitor is D1s, and a round one is D2s. There are lots of sources for replacement bulbs, I got one at hidplanet.com.
at d2s (Dare 2 share)
d2s or a h7
You can get it from places such as amazon or philipsxenon.com or See the Sources and Related Links section below.
Search By Bulb Image Simply identify your bulb from the list below and click on the image, text or diagram to view upgrade options available:H1........H3H4H7HB3Please Note Differences.........HB4Please Note Differences..........D2S...........D2R..........410...........HB12
www.HIDbulbzRus.com is a low cost USA located seller of Philips D1S and Osram (Sylvania) D1S HID bulbs and also D2S and D2R bulbs Philips and GE. The D1S bulbs are currently priced at $70 for Philips and $67 for Osram.
If you are only given total distance and total time you cannot. If you are given distance as a function of time, then the first derivative of distance with respect to time, ds/dt, gives the velocity. Evaluate this function at t = 0 for initial velocity. The second derivative, d2s/dt2 gives the acceleration as a function of time.
There is a wide range of cars that use a huge range of bulbs. Most modern halogen bulbs are the H1 or H7 types, but there are still quite a few using H4 twin filament bulbs. Some cars now have HID bulbs as an option - there are a smaller range of these currently in use, with 4 main ones - D1s, D1R, D2S and D2R - in common use.
That's unusual. I guess your teacher is trying to make you think a bit. It's a good mental exercise, though. You may recall that the units of acceleration are meters per second squared. That gives you a clue right there. And if you knew Calculus, you'd know that acceleration is the second derivative of distance, s, with respect to time, t: d2s/dt2. So, by now you're probably getting the feeling that the slope of a distance-time squared graph has something to do with acceleration. And you'd be right. Just as the slope of a velocity-time graph is acceleration, the slope of a distance-t2 graph is acceleration. Well, not quite. It's actually ONE HALF the acceleration.
Yes the equations of Kinematics can be used if accelration varies with time, displacement or even velocity; but remember it's not just plug & chug, you will have to integrate the equations. vdv=ads ds/dt=v dv/dt=a d2s/dt=a
Although not specified in the question, I'll assume you meant the low beam headlight bulb. If so, it could be one of two types, depending on what was installed at the factory for your particular model. Most of the Passats use the H7 (55 watt) halogen bulb. Others with the HID/Xenon option use the D2SHID (12v35w) bulb. (Just in case you were looking for the high beam bulb, it would be the H7). If your car uses the H7 style bulb, you can get a standard/factory version (they cost about $12-16, depending on where you buy, what brand, etc.) Or you can choose to upgrade to something like a "Cool Blue", or Sylvania Silverstars for a whiter, brighter light. Those run about $25-30 per bulb. In contrast, the D2S high-intensity discharge/xenon bulbs run well over $100 per bulb.
The lower the color temperature, the higher the light output. But this doesn't really matter. There are about twelve different legitimate HID bulb types: D1R, D1S, D2R, D2S, D3R, D3S, D4R, D4S, D5R, D5S, 9500 and a few others. They all produce about the same amount of light (around 3,000 lumens), and they all produce light of about the same color temperature (4100K to 5000K); any nonstandard color temperature or lumen output is illegal. The differences among the various bulb types are physical and/or electrical to work with different kinds of headlamps and different kinds of electrical control gear. The end user does not get to choose which type of bulb to use; that decision is made at the headlamp design stage—each headlamp accepts only one kind of bulb, and putting in the wrong kind ruins the safety performance of the headlamp.