Problem: Article: Newton's second law of motion states that force equals mass times acceleration: F = ma. If you know the net force on the object, and it's acceleration, you can rearrange this formula to find the mass: m = F / a. Force is measured in N (newton), which you can also write as (kg * m)/ s2. Acceleration is measured in m/s2. When you calculate F / a, the units cancel to give you an answer in kilograms (kg). Mass is the amount of matter in an object; this does not change unless you cut off part of the object, or attach more material. Weight is a measurement of gravity's effect on mass. If you move the object to an area with different gravity (such as from the earth to the moon), it's weight will change, but it's mass will not. An object with more mass does weigh more than an object with less mass, if they're experiencing the same gravity. . If you're doing your chemistry homework, you may come across the term "molar mass." This is a related concept, but instead of measuring an object, you measure exactly one mole of a substance. Here's how to calculate it in most contexts: For an element: look up the atomic mass of the element or compound you are measuring. This will be in "atomic mass units" (amu). Multiply by the molar mass constant, 1 g/mol, to put it into standard molar mass units: g/mol. For a compound: add the atomic masses of each atom in the compound to find the total amu of the molecule. Multiply this total by 1 g/mol.
Summary: Determine mass with force and acceleration. Understand mass and weight. Calculate molar mass

Problem: Article: If you need to share files with Windows or Mac computers, you will be much more successful using Samba. When sharing files with NFS, there are two side: the server and the clients. The server is the computer that is actually storing the files, while the clients are the computers that are accessing the shared folder by mounting the shared folder as a virtual drive. NFS will need to be configured on both the server and any client that wants to connect. This is the computer that will be hosting the shared files. The server computer will need to be turned on and logged in in order for clients to mount the shared folder. NFS requires using the terminal to install and configure both the server and client. sudo apt-get install nfs-kernel-server nfs-common portmap and press Enter. This will begin downloading and installing the NFS files on your computer. dpkg-reconfigure portmap. Select "No" from the menu that appears. This will enable other computers on the network to connect to your shared folder. sudo /etc/init.d/portmap restart to restart the portmap service. This will ensure that your changes take effect. This is an empty directory that will direct the clients to the actual shared directory. This will allow you to change the shared directory on your server later without having to make any changes to the clients. Type .mkdir -p /export/dummyname and press Enter. This will create a directory named dummyname that the clients will see. This will open the /etc/fstab file and allow you to automatically mount the shared drive whenever the server boots up. sharedpath dummypath none bind 0 0 to the end of the file. Replace sharedpath with the location of the shared drive, and replace dummypath with the location of the dummy directory you created earlier. For example, to share the /dev/sdb drive with the clients using the dummy directory created earlier, you would type /dev/sdb /export/Shared none bind 0 0. Save the changes to the file. /etc/exports file. You will need to add your dummy directory as well as the IPs that are allowed to access it to this file. Use the following format to share with all the IP addresses on your local network: /export/dummyname 192.168.1.1/24(rw,no_root_squash,async). sudo /etc/init.d/nfs-kernel-server restart command to restart the NFS server.
Summary: Use NFS (Network File System) to share files between Linux computers on a local network. Understand how NFS works. Open the terminal on the server computer. Type . After installation, type . Type . Make a dummy directory that will be used to share the data. Type pico /etc/fstab and press Enter. Add . Open the . Use the .

Problem: Article: It will take anywhere from 24 to 28 hours for your skin to heal after sugaring. It's very common for red spots to form on sugared areas. These spots form where the hair root was removed, and may look somewhat similar to a sun burn. Do not worry about such spots as they'll clear up in a few days. In the event you get an ingrown hair, treat it promptly. Ingrown hairs can cause serious skin irritation if left untreated. You can use topical gels designed to treat ingrown hairs at a local supermarket. If ingrown hairs do not clear up on their own, see a dermatologist. Doing sea salt soaks regularly following a sugaring appointment can prevent the formation of ingrown hairs. If you notice redness, itching, burning, or other symptoms that do not go away within 24 or 48 hours, see a dermatologist. Sugaring is usually safe, but can make your skin more susceptible to infections. If you have a rash that you suspect may be infected, make an appointment with a dermatologist.
Summary: Do not worry about red spots. Treat ingrown hairs. See a dermatologist in the event of an infection.

Problem: Article: Follow the package directions on your dry mounting paper to see what temperature is needed for the mounting process. Typically, this should range between 160200F (7193C). Turn on your iron and allow it to preheat while you begin getting your print prepared for mounting. Layer your print over your dry mounting paper and your chosen backing so that everything is centered. Make sure that none of the dry mounting paper is sticking out from under the print, as this could damage the front side of your print when heated. You will start heating the center of your print to dry mount it before you get to the edges, so keep your print in place by taping the edges with painters tape or masking tape. Make sure the print, paper, and backing are all secure before you begin dry mounting, because you won't be able to move them back into place once you start. Although your print should withstand heat without damage, direct heat from the platen of the iron could scorch or bubble the ink or paper. Lay a piece of blotting paper over the top of the taped-in-place print, in order to act as a shield against damage. The heat from the iron will glue the three layers together, keeping them in place for the rest of the mounting process. Let the iron set (without moving it) on the center of the print for 3-5 minutes. When the print is firmly attached to the backing, you can move onto the next section. Follow the same practice as above by moving the iron to each of the corners and edges of the print, and allowing it to sit and heat the dry-mounting paper for 3-5 minutes. Moving the iron around or back-and-forth during this process will make it take longer for the dry-mounting process to complete, so just watch the paper to make sure it isn't too hot without moving it. Each time you are ready to move to a new corner, set the iron in the center and slide it out to the corner. This will remove any bubbles that might have formed under the print from the dry mounting paper. Un-tape the sides of the print when you are ready to dry-mount that area. Be careful not to pull the print away from the freshly-mounted backing when you remove the tape. When your print is securely attached to the backing on all sides, then the dry mounting process is complete. Allow it to cool for several minutes, and then remove the paper. At this point, you are finished! Follow up with a picture frame for a truly completed look.
Summary:
Heat up your iron. Line up your print, paper, and backing. Tape your print in place. Place a piece of blotting paper over your print. Place your iron on the center of the print. Continue mounting the corners with the iron. Finish up.