Q: The formula for calculating kinetic energy (KE) is KE = 0.5 x mv2. Here m stands for mass, the measure of how much matter is in an object, and v stands for the velocity of the object, or the rate at which the object changes its position. Your answer should always be stated in joules (J), which is the standard unit of measurement for kinetic energy. It is equivalent to 1 kg * m2/s2. If you are solving a problem where the mass isn't given, you will have to determine the mass yourself. This can be done by weighing the object on a balance and obtaining the mass in kilograms (kg). Tare the balance. Before you weigh your object, you must set it to zero. Zeroing out the scale is called taring. Place your object in the balance. Gently, place the object on the balance and record its mass in kilograms. If necessary, convert grams to kilograms. For the final calculation, the mass must be in kilograms. Oftentimes, the problem will give you the velocity of the object. If this is not the case, you can determine the velocity by using the distance an object travels and how long it takes to cover that distance. The units for velocity are meters per second (m/s). Velocity is defined by the equation, displacement divided by time: V = d/t. Velocity is a vector quantity, meaning it has both a magnitude and a direction. Magnitude is the number value that quantifies the speed, while the direction is the direction in which the speed takes place during motion. For example, an object's velocity can be 80 m/s or -80 m/s depending on the direction of travel. To calculate velocity, simply divide the distance the object traveled by the time it took to travel that distance.
A: Know the formula for calculating kinetic energy. Determine the mass of an object. Calculate the velocity of the object.

Q: Like all surgical procedures, breast augmentation carries risks. Some are severe, while some less so, but it is important to know what risks you are taking, for bigger boobs: Nerve damage in the breast may cause numbness in the nipples or breast tissue; an inability to feel anything. These effects can be permanent. Complications with future mammography. Breast implants make breast-cancer screening more difficult and demand an x-ray technician experienced in working with implants. Your doctor may also require additional tests with each checkup including an ultrasound and an MRI. Do not forget, these procedures are the result of cosmetic surgery, unlikely to be covered by insurance. Your scars will be firm and pink for at least six weeks. They may remain the same size for several months, or even appear to widen. After several months, your scars will begin to fade, though they will never disappear completely. Capsular contracture refers to a painful complication in which scar tissue hardens around the implant and squeezes, which can result in shape changes in the breasts, breasts that are hard to the touch, and pain. Additional surgery is required to deal with capsular contracture. Some women suffer severe infections one to two weeks after surgery. In rare cases, the implant will have to be surgically removed. You may experience excessive bleeding following the surgery, along with swelling and pain. Again, additional operations will be needed if this happens. Implants can break or leak. Beyond factory defects, many things can cause the implants to break and leak inside your body. These activities include exercise, injury and even normal day-to-day movement. Ruptured implants are a controversial topic and more can be written about the subject. In general, what happens when an implant breaks depends on the kind of implant: If a saline-filled implant breaks, the implant will deflate in a few hours and the salt water will be absorbed and naturally expelled by the body. If a silicone-gel filled implant leak or break, the elastic silicone gel may remain within the implant shell, or may escape into the breast. A leaking silicone gel implant may not be noticeable except through expensive tests like an MRI. Thus women with silicone breast implants are advised to visit with their plastic surgeon every year, to make sure they are still functioning properly. Your new breasts may be slightly different from one another, potentially in both size and shape. Engage in your regular day to day activities. Routine activity or injury can cause damage, resulting in the implants leaking or breaking. Additional surgery will be necessary to remove the implant or replace it. There is no evidence that implants change your ability to nurse an infant, or change anything about your pregnancy. It is possible, however, that the pregnancy will alter your body enough that the implants will have to be replaced for aesthetic reasons.
A:
Familiarize yourself with the risks. Prepare for changes due to breastfeeding and pregnancy.