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How do you find initial velocity?

Determine the value of force and final velocityFind f = ma, where m is the mass of the object; and a is the acceleration of the object. Then, calculate the final velocity with using the formula v(f) = v(i) + at, where: v(f) is the final velocity of the object, v(i) is the initial velocity of the object and a is the acceleration of the object over a specific period of time, t.\n\nDetermine the accelerationFind the acceleration by using the formula a = f/m where m is the mass of the body in motion and f is the force applied. Substitute the relevant values for the force and mass to find the accel..

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Where can I sell my bone marrow?

Although California's 9th Circuit Court of Appeals wrote that bone marrow sales are not criminal, they are legal in only nine states. Selling marrow has been prohibitive until now because of the painful extraction method of aspiration, or siphoning out cells from the hip bone through a large needle. Apheresis is a less-intrusive method for harvesting marrow stem cells from the bloodstream via blood drawn from the arm.\nBone marrow is more often donated voluntarily for transplantation into an individual whom the donor knows, typically to combat leukemia or other blood diseases. Donating bo..

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Where does the International Date Line run through?

The IDL is deliberately placed so that it does not run through the middle of any country. As a result, it does not follow the 180-degree meridian in a straight line. The time difference on each side of the IDL is not always 24 hours, because there may be local time regulations in effect, but generally, if one crosses the IDL to the east, a day is subtracted, and if one crosses it to the west, a day is added.

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What is the number of valence electrons in magnesium?

The location and number of valence electrons in magnesium is written as 3s to the power of 2. Magnesium is in the second column, and subsequently the second group, of elements in the periodic table of elements. Each of the elements in this column have two valence electrons. These electrons are located in the outermost shell of an atom. The bonding characteristics of an atom are determined by its valence electrons.

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How are binary fission and mitosis similar?

All cellular reproduction depends on a process that does more than manage the replication of genetic material. Control mechanisms need to ensure equal distribution of DNA and cellular components to new cells. Binary fission uses a simple bipolar filament to segregate newly created DNA to opposite sides of the prokaryotic cell. Mitosis involves a complex spindle structure to separate the daughter nuclei structures.\nCytokinesis, the means by which the cell splits into new cells, must be tailored to meet the needs of particular structures. In prokaryotes, new cell membranes grow at a contracting..

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Is the hypodermis a layer of skin?

The hypodermis connects outer skin to the tissue underneath it, while regulating body temperature. The hypodermis contains fat cells, connective tissue and fibroblasts. Fibroblasts are responsible for collagen production, which keeps the skin youthful. The hypodermis also houses larger blood vessels and nerves than the other layers of skin. The size of the hypodermis varies from person to person, and often accumulates in different areas on men and women.

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What is the chemical formula for lead?

Lead's symbol, Pb, is an abbreviation of the Latin word plumbum, which means liquid silver. Lead has been known since antiquity. In its standard state, it is a blue-white solid metal that is soft and can be easily formed. Lead is one of several elements that can be found naturally in its pure form. It can bond with other elements to form compounds. Examples include lead monoxide (PbO), galena (PbS) and lead chromate (PbCrO4).

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How many muscles move your hand?

The four thenar muscles work to move the thumb and the inside of the hand. The hypothenar muscles work together to move the pinky finger and the outside of the hand. Finally, the interosseous muscles and the lumbricals work to move all of the fingers and the palmar region of the hand. These muscles are all intertwined and work together to extend and flex each finger.

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Why did we go to the moon?

In 1957, Russia sent Sputnik into space, proving the country had great technological capabilities. Many Americans felt the United States was technologically superior to other countries in the aftermath of World War II, so this feat proved embarrassing for American citizens. There was also some concern that the Soviets would use their space program to put weapons in space, putting the U.S. at risk should another war occur.\n\nIn 1961, President John F. Kennedy announced a plan to put an American astronaut on the moon by the end of the 1960s. There was a lot of pressure to overtake Russia and pr..

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How does the ozone layer work?

Oxygen molecules consist of a pair of oxygen atoms, while ozone molecules consist of three oxygen atoms bonded together. Ozone molecules are less stable, allowing them to break apart when struck by ultraviolet energy. The molecules absorb the energy and convert it to heat, severing the molecular bond and producing three individual oxygen atoms. These freed oxygen atoms are then able to bond with each other, creating either oxygen or ozone molecules.\nThe remaining ultraviolet energy in the stratosphere can then be absorbed by the oxygen molecules, in turn severing their bond and allowing freed..

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