Write an article based on this "Install a home security system. Purchase a sign from a security company. Install motion sensors. Replace your older entry doors. Install strong locks. Purchase a fireproof safe. Relocate any hidden keys."
article: Standard home security alarms generally include sensors on all entry doors, sensors on easily accessed windows, and some motion activated sensors for outdoor spaces. They are also a direct link to a monitoring service. These systems act as a deterrent for intruders and are fairly easy to use.. You can have a home automation system installed that allows you to access a security system through a smart phone or computer application. Often a full security system would include outdoor cameras, automated lighting, and an alarm and monitoring system. These provide peace of mind whenever you're far away from your home. Installing a home security system may also reduce your homeowners' insurance payments. If you have chosen to purchase and install a home security system, consider purchasing a sign from a different company. Some homeowners worry that advertising their home security system will clue burglars in how to trick the system. If you put up a sign from a different company, you circumvent this risk. Even if you did not install a security system, you can and should still find a sign to put up in your yard as doing so may be enough to scare any potential burglars away. You can easily find these signs on most resale websites or auction websites. This is applicable for homeowners rather than for families living in apartment buildings. If you have outdoor spaces, consider installing motion sensors that turn on a light when someone moves close. Consider adding motion sensors by any entryways like those on porches, decks, and by garages. Ensure that the light controlled by the sensor is bright enough to draw attention to anyone attempting to enter the home. Strong doors are a worthwhile investment as a deterrent for robberies. Ideally, they will be over 1 inch thick and be made of or clad in metal. Solid wood doors are also a good option. Your door should be strong enough that no one can break it down or kick it in. Not only will this increase security, it may also improve your home's energy efficiency. Good locks are useless if your door is easily broken! This may not be possible if you are renting your home or live in an apartment. If this is the case, speak with your landlord to see if they will consider installing more secure doors. Consider adding a dead bolt or an extra strong lock to entryway doors. If you have sliding glass doors, install locks that wedge between the door and the track to ensure they cannot be opened from the outside. If you have window screens, add security latches to the screen. Window screens can be easily opened, but security latches add an additional layer of protection. A safe is a necessary investment for every homeowner. You should keep your essential documents here, like the deed to your home, your passports, and identification cards whether you are home or away. Before you leave, lock up any valuables that you may keep out on an everyday basis, like jewelry or sensitive documents. Many of us have a hidden key to our front doors or garages tucked away under a welcome mat, in a plant, or in a decorative garden item. Retrieve the hidden key and put it somewhere safe inside your home. Since you'll be away, there's no reason for a hidden key to be outside. Most burglars know that homeowners will hide keys and will look for one that is easily accessible when they want to break in.

Write an article based on this "Wipe it off. Use a scraper. Try an aquarium magnet. Clean the outside."
article: If you just have some mild algae buildup on the inside of your glass, it's pretty easy to wipe it off with a sponge. Be sure to use a clean sponge that will not introduce any chemicals or detergents into your aquarium. It's perfectly fine to do this while your fish are in the tank as long as you don't remove much of the water. You can use a sponge with an abrasive side if you need a little extra scrubbing power. If you don't want to put your arm in the tank, you can find a scrubber with a long handle at your local aquarium store. If you just need to remove some tougher algae from the inside of your aquarium glass, it's easy to do with a scraper. Aquarium stores sell a special tool with a a scraper on one end and a brush on the other that is designed specially for this task. Let the algae fall to the bottom of the tank as you are scraping and scrubbing. You can clean it up with an aquarium vacuum when you are finished. If the scraper is not working well enough, you can use a razor blade to scrape off the algae. Hold it at a 45 degree angle against the glass and scrape very carefully so as not to cut yourself. Do not empty the tank to do this. Removing more than 25% of the water from your aquarium can destroy the beneficial bacteria colonies that live there, which can cause your fish to die. If you don't want to stick your arm in the tank to clean the glass, there is another option. You can buy an aquarium magnet at your local pet or aquarium store, which will make this task much easier. The part of the magnet with the scrubbing pad goes on the inside of the glass, and the part with the handle goes on the outside. As you move the outside part around, the inside part will glide along the inside of your tank, cleaning the glass. Be very careful not to bring your magnet within two inches of the sand or gravel at the bottom of the tank. If you get any abrasive materials stuck under the pad, you run the risk of scratching your glass. Be sure to rinse the cleaning pad after each use, and never leave the magnet in the tank when you are not using it. This will help prevent any sand from getting under the pad. Consider placing a piece of felt under the exterior part of the magnet to protect the glass. Aquarium magnets are available in a variety of sizes. The size of the magnet you choose will depend on the size of your tank. Although any size will work, it may be tedious to clean a very large tank with a very small magnet. The magnets are also available in different strengths. Use a stronger magnet for glass than for acrylic. (Be very careful not to get your fingers caught between them if you choose a strong magnet!) Some of these magnets float so you don't have to worry about fishing them out of the tank if they become dislodged. Some also have razor blade attachments for stubborn algae. It's just as important to keep the outside of your aquarium glass clean as the inside, and this task is considerably easier. Simply use a lint-free cloth or soft piece of paper (coffee filters and newspaper both work well) and gently scrub the outside of your tank with warm water. Using chemical cleaners is not advised because it is possible that small particles could become airborne and contaminate the inside of your tank. If you must use a chemical cleaner, spray it onto your cloth well away from the aquarium, instead of spraying it onto the glass.

Write an article based on this "Define the equation for average acceleration. Understand the variables. Use the formula to find acceleration."
article:
You can calculate the average acceleration of an object over a period of time based on its velocity (its speed traveling in a specific direction), before and after that time. To do this you need to know equation for acceleration: a = v / t where a is acceleration, v is the change in velocity, and t is the amount of time it took for that change to occur. The unit for acceleration is meters per second per second or m/s2. Acceleration is a vector quantity, meaning it has both a magnitude and a direction. The magnitude is the total amount of acceleration whereas the direction is the way in which the object is moving. If it is slowing down the acceleration will be negative. You can further define v and t: v = vf - vi and t = tf - ti where vf is the final velocity, vi is the initial velocity, tf is the ending time, and ti is the starting time. Because acceleration has a direction, it is important to always subtract the initial velocity from the final velocity. If you reverse them, the direction of your acceleration will be incorrect. Unless otherwise stated in the problem, the starting time is usually 0 seconds. First write down your equation and all of the given variables. The equation is a = v / t = (vf - vi)/(tf - ti). Subtract the initial velocity from the final velocity, then divide the result by the time interval. The final result is your average acceleration over that time. If the final velocity is less than the initial velocity, acceleration will turn out to be a negative quantity or the rate at which an object slows down. Example 1: A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. What is its average acceleration? Write the equation: a = v / t = (vf - vi)/(tf - ti) Define the variables: vf = 46.1 m/s, vi = 18.5 m/s, tf = 2.47 s, ti = 0 s. Solve: a = (46.1 18.5)/2.47 = 11.17 meters/second2. Example 2: A biker traveling at 22.4 m/s comes to halt in 2.55 s after applying brakes. Find his deceleration. Write the equation: a = v / t = (vf - vi)/(tf - ti) Define the variables: vf = 0 m/s, vi = 22.4 m/s, tf = 2.55 s, ti = 0 s. Solve: a = (0 22.4)/2.55 = -8.78 meters/second2.