In one sentence, describe what the following article is about: This is crucial to achieve perfect precision with 4, 6, and 8 or more sub woofers. An amp that is rated at 1000w RMS (Root Mean Square, or the average watt the speaker is intended to receive and play with) set for 1 ohm can power two 2-ohm subs rated at 500w RMS. That same amp can power four 4ohm subs and so forth. But the more subs an amp is placed on, the less power it can give to each individual sub. This is not necessarily a bad thing if you have a 2000w RMS amp and two 600w RMS subs. In fact, you always want the power from the amp to be slightly higher than what the sub(s) requires; a 1000w amp will work well with a 7 or 800W RMS sub. Just make sure that the sub's peak power is rated above 1000w. If rated under, make sure your amp's level is not too high as you can damage the sub. If you have a really powerful amp that's 3000w RMS or higher, then you can really power multiple subs at once without any problem. Just make sure the subs don't combine to read at 0.5 ohm (a dangerous level for an amp, unless it specifies that it can run at that low ohm level) and all your wires are properly connected and wired. However, depending on whether you wish to connect them in series or parallel or bridge the amp, you may only use two terminals. Refer to your amp's diagram for more specifics.
Summary: Know your amps' and sub woofers' limits. Connect all subs to the same terminals in the amp.

Use this method if you know: two different speeds; and that those speeds were used for the same distance. For example, if Ben drives the 160 miles to the waterpark at 40 mph, and returns the 160 miles home driving 60 mph, what is his average speed for the entire trip? The formula is s=2aba+b{\displaystyle s={
rac {2ab}{a+b}}}, where s{\displaystyle s} equals the average speed, a{\displaystyle a} equals the speed for the first half of the distance, and b{\displaystyle b} equals the speed for the second half of the distance. Often problems requiring this method will involve a question about a return trip. In these types of problems, it doesn't matter how far each speed is driven, as long as each speed is used for half the total distance. You can modify the formula if given three speeds for the same distance. For example, s=3abcab+bc+ca{\displaystyle s={
rac {3abc}{ab+bc+ca}}}. It doesn't matter which speed you substitute for a{\displaystyle a} and which you substitute for b{\displaystyle b}. For example, if the first speed is 40 mph, and the second speed is 60 mph, your formula will look like this: s=(2)(40)(60)40+60{\displaystyle s={
rac {(2)(40)(60)}{40+60}}}. This number should be the numerator of your fraction. For example:s=(2)(40)(60)40+60{\displaystyle s={
rac {(2)(40)(60)}{40+60}}}s=480040+60{\displaystyle s={
rac {4800}{40+60}}}. This number should be the denominator of your fraction. For example:s=480040+60{\displaystyle s={
rac {4800}{40+60}}}s=4800100{\displaystyle s={
rac {4800}{100}}}. This will give you the average speed for the entire trip. For example:s=4800100{\displaystyle s={
rac {4800}{100}}}s=48{\displaystyle s=48}. So, if Ben drives 40 mph for 160 miles to the waterpark, then 60 mph for the 160 miles home, his average speed for the trip is 48 mph.
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One-sentence summary -- Assess what information is given. Set up the formula for average speed given two speeds used for the same distance. Plug the speeds into the formula. Multiply the product of the two speeds by 2. Add the two speeds together. Simplify the fraction.

Problem: Article: You might feel hurt or angry if your friends go MIA, but their behavior says more about them than it does about you. Your friends may not know what to say to you, or they might find it too difficult to see you suffering. Seeing a friend come down with a chronic illness is hard for many people because it reminds them that anybody can get sick. People may disappear from your life because they don't want to think about their own health and mortality. Some of your friends might feel awkward around you because they don't know how to act anymore. If they're afraid of saying something wrong, they might start avoiding you altogether. Also, some people inaccurately assume that you want space while you are coming to terms with your diagnosis. Particularly if you have been less present socially due to pain or illness. If a friend says something that hurts your feelings, don't hesitate to tell them how it affects you. Putting a stop to tactless jokes right away will make your friends less likely to say similar things in the future. If your friend cares about you, they will apologize and speak more carefully next time. Be direct. Say something like, "That's pretty hurtful to me. I'd rather you didn't joke about that." Be aware that your friend is probably not being intentionally hurtful. They may be making a poor attempt at humor because they don't know what to say. Not everyone will be capable of giving you the same degree of support, but don't let this keep you from asking. Just be understanding if they can't make something work. Don't assume they do not have time for you. If a friend can't be there for you all the time but still makes an effort to keep in touch and help you out occasionally, let them know you appreciate them. You might say, "I know we used to spend more time together, and I'm not physically able to go out as much. I really appreciate how flexible you have been to still hang out with me."
Summary:
Understand that your friends' lack of support isn't personal. Stand up for yourself when people say insensitive things. Revise your expectations.