help please Write force F in Cartesian vector form What is the moment.docx

•Download as DOCX, PDF•

0 likes•5 views

The force F is given in Cartesian vector form as F=60i-30j+20k. The moment of F about point A is -100i-100j-140k. Members DF and BH are identified as zero force members since truss members cannot sustain tangential loads.

Education

help please
Write force F in Cartesian vector form What is the moment of the force F about point A Identify
zero force members
Solution
1)
A=(0.3.2)
and B=(6,0,4)
so AB=(6,-3,2)
so unit vector along AB=(6,-3,2)/(magnitude)
magnitude=sqrt(36+9+4)=7
so F=70*(6i-3j+2k)/7=60i-30j+20K
2)
B=(2,5,6)

A=(1,-1,1)
so AB=(1,6,5)=r
torque=r*F=(i+6j+5k)*(30i+40j-5K)
=-100i-100j-140K
3) DF, BH should be zero force member since truss member cannot sustain tangential load
note

More from rtodd588

Graphite bonds in flat sheets with only London forces to hold the sheets together, and therefore it can act as a lubricant. IS THIS TRUE OR FALSE Solution True. Graphite is a layered structure, the individual layers don\'t stick together very strongly, allowing them to slide very easily when sheared. There are actually no carbon-carbon bonds holding the layers together.Graphite is formed by very thin layers of carbon weakly bond together by Weak Van der Waals forces (London forces). In each of these layers, each atom of carbon is only bonded to three other carbon atoms from the same \"sheet\" . Those layers of carbon are actually so weakly bonded together that they can in fact slip upon each other with little effort. the fact that it is used as a lubricant .

Graphite bonds in flat sheets with only London forces to hold the shee.docx

rtodd588

Given this information about activity 3-4: ES = 10, EF = 15, LS = 16, and LF = 21, we can determine that the amount of slack associated with the activity is : Select one: A. 5 B. 11 C. 6 D. 1 E. 0 Which of the following is not a benefit of effective supply chain management? Select one: A. lower inventory costs B. greater customer loyalty C. higher productivity D. shorter lead times In location planning, land costs, transportation availability, and zoning regulations are: Select one: A. site related factors B. community factors C. regional factors D. multinational factors E. irrelevant factors Solution 1 C. 6 2 C. higher productivity 3 B. community factors 3 .

Given this information about activity 3-4- ES - 10- EF - 15- LS - 16-.docx

rtodd588

Growing active lifestyle apparel segment Wholesale distribution mix Design capabilities 14% growth rate Production flexibility Emerging markets Design capabilities Corporate culture Product substitutes and counterfeits Fast cycle of apparel and fashion markets Limited direct customer channels Competitor bids for growth segments Solution 1.Growing active lifestyle apparel segment 2.Emerging markets 3.Limited direct customer channels .

Growing active lifestyle apparel segment Wholesale distribution mix De.docx

rtodd588

Group Policy is one of the most useful features of Windows Server 2008 and can be used to implement a variety of policy settings for our resources. However, to use it effectively, we need to understand its capabilities. Let\'s define Group Policy and identify its capabilities. Where would you consider using Group Policies? Solution group policy: it is an basement or infrastructure that is used to implement congficurations. it contains group policy objects capabilities: group policy uses gpmc(group policy management console which is use to manage gropu policy i)filtering ii)edit iii)backup iv)restore v)import vi)controlling group objects using of group policies: it is much better to use in server ex:remote server admistration tools .

Group Policy is one of the most useful features of Windows Server 2008.docx

rtodd588

how can I better understand how to do the reverse in factoring polynomials? Solution One helpful way to think about multiplying out factored polynomials is to look at how we multiply two-digit numbers 34 x21 _____ 34 680 what we do is 1*4 + 1*30 +20*4 + 20*30 If we write 34 as 30 + 4 and 21 as 20 +1, we see that (30 + 4)(20 + 1) = firsts + outsides + insides + lasts (in a different order, but they add up to the same sum) This is the FOIL technique. In general, every member of the first parenthetical group multiplies every member of the second parenthetical group. If the first parenthetical group has n terms and the second has m terms, there will be n*m terms when they are multiplied. After multiplication, some of the terms will be able to be combined if they have the identical variables to the identical powers. .

how can I better understand how to do the reverse in factoring polynom.docx

rtodd588

Holly inherited $10,000 of City of Atlanta bonds in February. In March, she received interest of $500, and in April she sold the bonds at a $200 gain. Holly redeemed Series EE U.S. savings bonds that she had purchased several years ago. The accumulated interest totaled $800. Holly received $300 of interest on bonds issued by the City of Quebec, Canada. What amount, if any, of gross income must Holly report? Solution Solution. gross income of Holly = Sold the bonds at a gain = $200 Accumulated interest totaled = $800 Received of interest on bonds = $300 Total = $1,300 .

Holly inherited $10-000 of City of Atlanta bonds in February- In March.docx

rtodd588

Hi, Please, need help, and step by step. More detail. I need to understand. Thank You Find a basis for the plane x1+4x2-5x3=0 in R^(3) Solution x 1 +4x 2 -5x 3 = 0.......(1) n = <1,4,-5> We have to find a basis for the plane (1). That is we have to find two vectors such that dot product of each vector with n is 0. Let n 1 = <0,5,4> n 2 = <5,0,1> n.n 1 = (1*0) + (4*5) + (-5*4) = 20-20 = 0 n.n 2 = (1*5) + (4*0) + (-5*1) = 5-5 = 0 Thus the vectors n 1 = <0,5,4> and n 2 = <5,0,1> forms a basis for the plane (1). .

Hi- Please- need help- and step by step- More detail- I need to unders.docx

rtodd588

hich is most solo ble ethane ? ethamol2 butane ar butanal2 Solution Alkanes are non polar and alcohols are polar due to the presence of oxygen. If the no of carbons increases in the molecules polarity of alcohols decreases. That means methanol is more polar than ethanol and ethanol is more soluble than propanol and so on. Ethane and butane are belong to alkane family. Thus, they are non polar and non soluble in water. Because polar molecules soluble in polar solvents. Water is a polar solvent. Now, butanol is less polar than ethanol. Since butane has 4 carbons in it while ethanol has 2 carbons, butane is less soluble. Finally ethanol is most soluble. Thanks .

hich is most solo ble ethane - ethamol2 butane ar butanal2 SolutionAlk.docx

rtodd588

More from rtodd588 (8)