Please show all steps- Thank you- Constants Part A Four identical mass.docx

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Please show all steps. Thank you. Constants Part A Four identical masses of mass 5.00 kg each are placed at the corners of a square whose side lengths are 3.00 m What is the magnitude of the net gravitational force on one of the masses, due to the other three? Express your answer with the appropriate units aal Solution The expression for the gravitational force of attraction between the two masses in Newtons is - F = G m?m?/rÂ² where, G = 6.674e-11 mÂ³/kgsÂ² m? and m? are the masses of the two objects in kg r is the distance in meters between their centers #1, at +x = 3?2 meter distance F1 = G(5)Â² / (3?2)Â² = 1.39*G angle is 0Âº #2 at distance 1 meter F2 = G(5)Â² / (3)Â² = 2.78*G angle is 45Âº #3 at distance 1 meter same as F2 but angle is â€“45Âº Y components of 2 and 3 cancel, so all we have to do is add the x components F = F1 + F2cos45 + F3cos45 F = F1 + 1.414 F2 F = 1.39*G + 1.414*2.78*G = 5.32*G = 5.32*6.674*10^-11 = 3.55 x 10^-10 N .

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The mutual fund industry is beginning to use the Internet to disseminate fund information and effect fund transactions. The Internet also makes it much easier for savers to obtain information about individual securities and much cheaper to trade these securities. As the Internet develops, will savers make their investment directly in individual securities rather through financial intermediaries such as mutual funds? Solution A financial intermediary is an institution or individual that serves as a conduit for parties in a financial transaction. They act as go-betweens by holding a portfolio of assets and issuing claims based on that portfolio, various informations regarding that portfolio to savers. Typically speaking these financial intermediaries are institutions that facilitates the channeling of funds between lenders and borrowers indirectly . In the climate of finance and development, financial intermediaries generally refer to private sector intermediaries, such as banks, mutual funds, private equity, venture capital funds, leasing companies, insurance and pension funds. Financial intermediaries not only work as the intermediate agent on commission base, but will contribute valuables to the savers. They help the individual saver to judge the security by going through a deep analysis regarding the security. So, it will not a good act to do investment directly in individual securities rather through financial intermediaries such as mutual funds. .

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The primary tool for hardening symmetric cryptography is public key infrastructure. Select one: True False ABC Corp recently released a new version of their Web-based inventory management software. Unfortunately a bug in their code was discovered that would allow an attacker to take full control of the host Web server. In information security this is considered to be a(n) Select one: a. flaw b. weakness c. vulnerability d. exploit Solution The primary tool for hardening symmetric cryptography is public key infrastructure. Select one: True False ABC Corp recently released a new version of their Web-based inventory management software. Unfortunately a bug in their code was discovered that would allow an attacker to take full control of the host Web server. In information security this is considered to be a(n) Select one: a. flaw b. weakness c. vulnerability d. exploit .

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the primary function of the skin the primary function of the skin the primary function of the skin Solution Skin Basically in terms of computer skin refers to visual effects either on the operating system(task bar, menu bar, background , themes), websites,applications. Main and primary functions of the skin are: 1). To provide a better look and feel. 2). To provide easy access to different tools or applicatons. 3). generally to provide better look and feel to the website we uses HTML and CSS (cascading style sheets(internal, external, inline). 4).For standalone software interfaces, it is implemented by XML (used to create user defined tags )and XSLT. 5). In terms of applications skin plays an important roles like in various media players (winamp, trillion etc), as well as in instant messaging clients. Software skins Software which provide skin applied is referred to as being skinnable, and the process of using or applying such a skin is known as skinning. 6).In terms of computer vision human skin used as a biometric tool like Face recognition, people tracking, fingerprint identifications. 7).In terms of computer graphics skin are used as a) animation b) geometric modeling c) photorealistic rendering. .

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The primary difference between seasonality and cycles is? the duration of the repeating patterns the magnitude of the variation the ability to attribute the pattern to a cause the direction of the movement there are only 4 seasons but 30 cycles Solution answer is the duration of the repeating patterns explaination: Cycles are wavelike variation of more than one year\'s duration (long term). There are often related to a variety of economic, political, and even agricultural conditions. Seasonality refers to short-term, fairly variations generally related to factors such as the calendar or time of day. For example, restaurants, supermarkets, and theaters experience weekly and even daily \"seasonal\" variations. In one word, cycles are up-and-down movements similar to seasonal variation but of long duration-say, two to six years between peaks. .

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The nucleus of a 15 a distance of 5.4 x 10-11 m. What is the ratio of the density of the hydrogen nucleus to the density of the complete hydrogen atom? Section 30.1 10 30.P energy as a ground-state For a doubly ionized lithium atom Li2+ (z - 3), what is the principal quantum number of the state in which the electron has the same total Section 30.3 CJ10 36 P010 Solution 2) First find density of proton mass of proton = 1.67e-27 V = 4/3*pi*r 3 = 4/3*pi*(1.7e-15) 3 = 2.0579e-44 m 3 density = mass / volume = 1.67e-27 / 2.0579e-44 density = 8.115e16 kg/m 3 Mass of hydrogen atom = 1.67e-27 V = 4/2*pi*(5.4e-11) 3 = 6.596e-31 m 3 density = 1.67e-27 / 6.596e-31 density = 2531.9 kg/m3 Ratio =Â Â 8.115e16 / 2531.9 Ratio = 3.205e13 3) n 2 (Li) = (n 2 / Z 2 ) Hydrogen * Z 2 (Li) for ground state, n and z = 1 for hydrogen n 2 = 1*3 2 = 9 n (Li) = 3 .

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The main function of a cell membrane is to allow substances to enter and leave the cell. Which is a correct description of transport through a cell membrane? a. Diffusion, or passive transport, occurs when molecules diffuse from a lower concentration to a higher concentration. b. Facilitated transport occurs when proteins that extend through the cell membrane provide a channel through which certain substances can diffuse more rapidly than by passive diffusion. c. The lipid bilayer opens up and allows the ions or molecules to enter the cell, then closes. Solution Option b tends to be the appropriate answer for cell membrane function. Passive transport occurs from higher concentration region to lower concentration region. Vice versa for the active transport Ions transport through lipid bilayer through trans membrane protein .

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