5

Constants Periodic TableAralt is made of 15 logs lashed together: Each is 44 cm in diameler and has lenglh ol 6,5 mPart AHow many people can Ihe ralt hold before Ih...

Question

Constants Periodic TableAralt is made of 15 logs lashed together: Each is 44 cm in diameler and has lenglh ol 6,5 mPart AHow many people can Ihe ralt hold before Ihey start getling Iheir feet wet, assuming Ihe average person has mass ol 69 Do not neglect Ihe weight of the logs. Assume Ihe specilic = gravity 0i wood 0.60_ Express your answer using two significant figuresAZdSubmitRequest Answer

Constants Periodic Table Aralt is made of 15 logs lashed together: Each is 44 cm in diameler and has lenglh ol 6,5 m Part A How many people can Ihe ralt hold before Ihey start getling Iheir feet wet, assuming Ihe average person has mass ol 69 Do not neglect Ihe weight of the logs. Assume Ihe specilic = gravity 0i wood 0.60_ Express your answer using two significant figures AZd Submit Request Answer



Answers

A raft is made of 12 logs lashed together. Each is 45 cm in diameter and has a length of 6.5 m. How many people can the raft hold before they start getting their feet wet, assuming the average person has a mass of 68 kg? Do $not$ neglect the weight of the logs. Assume the specific gravity of wood is 0.60.

So here we're trying to find the number of people that can stand on the log without getting wet. So on the logs on the 12 lakhs without getting wet. So the weight of the water displaced by the logs must be equal to the weight of the people on the logs as well as the weight of the logs. So we can say that 12 times 12 logs times the volume of one log times the density of water times the acceleration due to gravity would be equal to the number of people times the mass of one person times G plus 12 times the volume of one log times the density of the log times G s. So we can say that n the number of people would be equal to 12 times the volume of the log times. The density of water minus the density of the log on this will be divided by the mass of one person. Uh, no, we can say that. Ah, this is gonna be equal to 12. Pie are log squared timesthe length of one log times the density of water times one minus the specific gravity of the wood and then this will be divided by again the mass of a single person. And at this point, we can actually solve. So the number of people would be equal to 12 pie times the radius of the log, so 0.2 to 5 meters square times the length of the log, 6.1 meters times uh, the density of water tend to the third kilograms per cubic meter times one minus the specific gravity of wood. So one minus 10.6 and then this will be again divided by the mass of a single person, 68 kilograms. And we find that the number of people that can get on and would be, at most 68 people. That is the end of the solution. Thank you for watching.

Question number 78. Let there are n people and muscle Each is, um, into G. This is the weight off and people on the rough, plus the weight off the rope. We just turned into wait off one log off Good. Then into density off would into g into the volume off would witches bye by four the square into the height off one love. This is the total weight off 10 lakhs and it is equal to the band Forced you to the then logs because 10 logs are under the water. So then into density off water in the G into volume off each law which is 54 the Squire into edge. Now simplifying this we can they end times mm plus now. So this is equal to then in tow 54 the square etch within break it then city or water minus and city off would so and into 68 kg. This is equal to 10 by four and the meter is zero point 56 m is squired and I talked one longest 6.1 m Indo then city of water is 1000 minus. Then city off good 600 kg per meter. Que From this we will get an equal toe. It be it 0.3. So it appeared persons again float on the on the rock.

This problem covers the concept of that this principle. And to solve this problem 1st, you need to calculate the volume of the route and the volume equals three m into four m In 20.15 m Or the volume of the raft equals 1.8 m rescued. Now to solve this problem, we need to draw the free body diagram of the rock, the forces acting on the rafters. The weight of the raft that is capital M. And cheap. Okay. And the vertically upward brand force that is F. B. And the weight of let's suppose and person. So and and um times cheap. The weight of the raft can return us the density of the world into the volume V. Thanks the gravitational acceleration and the band forces for complete some most condition. The density of the water into the volume. V times the gravitational acceleration. And for static equilibrium you can add the net force along the Y direction equals to see you Well in the vertical direction, the net force is zero are from this, we can buy it the road W tends vision minus row would times V g minus 10 times M. G equals zero. Or from this, we can buy it and is a collaborator. Uh The density of thought water. Manchester density of the wood. Okay, into the volume Upon the muscle one bus. Now let's substitute the values for the number of ports and equals The density of water is 1000 kg on the desk. You minus the density of wood is uh seven And then there's two kilogram for me to ask you into. The volume is 1.8 m. Q Upon the mass of one person is 70 Kg, So n equals 7.71 people. Okay, So the maximum number of people, yeah, Must be a and teaser and that is secure and 2 7.

So let's start by first before finding the in volume off each log. So the wall you off each love would be pi r squared times the length of the log. So the volume off each love is equal to 0.6 03 meter cube. Now multiplying this with the density off the log, it gives me the mass off each lock and the mass off each log. Since the density of the logs is 7 25 so 7 25 times 0.603 fat is equal to 43.7 kilograms. Now what? When meeting off a draft, there are a whole bunch off Pisa logs tied next to each other, so we do not know how many. But then we do know that there is an number off logs. So and then on top of this draft, we're gonna have four people. So we have 1234 people sitting. So the total mass that we have ordered total weight we have would be the mass end times the mass off Lord so which is 43.7 times and plus the mass of four people four Times 80 and time G. That's the torture downward force, actually cool G density off the water times the volume off the logs, Times G and I would multiply. There's also with end because the viewed August of volume of one lakh So to make things easy, let's start canceling out G from there and then I have 37 43.7 and plus 320 is equal to 1000 times 0.603 times end. So I get 43.7 and plus 13 20 is equal to 16.3 n. And then I could solve this equation for and that could be 60.3 minus 43.7. So I have 320 is equal to 16.6 n and then, UH, 3 22 watered by 16 points. Excuse me and is equal to 19.3 logs now. Way can't have 0.3 logs. That means we need at least 20 lakhs, so at least 20 logs were needed


Similar Solved Questions

5 answers
E va lucte the Impvope r iefsva | 4 de 4ermine whether t d;vevses 0 € Converses,544-x1
E va lucte the Impvope r iefsva | 4 de 4ermine whether t d;vevses 0 € Converses, 544-x1...
5 answers
Question 10A 6. .00-g block, initially at rest, is pulled to the right along a frictionless horizontal surface by a constant horizontal force of 1.20x10-2 N for a distance of 3.00 cm. What is the change in the kinetic energy of the block?
Question 10 A 6. .00-g block, initially at rest, is pulled to the right along a frictionless horizontal surface by a constant horizontal force of 1.20x10-2 N for a distance of 3.00 cm. What is the change in the kinetic energy of the block?...
1 answers
Z-trunsform of unit impulse sequence $delta(n)=left{egin{array}{ll}1, & n<0 \ 0, & n geq 0end{array} ight.$, is alz $-1$.
Z-trunsform of unit impulse sequence $delta(n)=left{egin{array}{ll}1, & n<0 \ 0, & n geq 0end{array} ight.$, is alz $-1$....
5 answers
Question 12 0 23A fish tank in a doctor'$ office in the shape of a rectangular prism with a width that is twice its height and two-thirds its length has a volume of 90,450 cm?. Determine the surface area of the fish tank; which is open at the top:SARound answer t0 the nearest whole number: Round intermediary steps t0 2 decimal places.cm?
Question 12 0 23 A fish tank in a doctor'$ office in the shape of a rectangular prism with a width that is twice its height and two-thirds its length has a volume of 90,450 cm?. Determine the surface area of the fish tank; which is open at the top: SA Round answer t0 the nearest whole number: R...
5 answers
5) Which two of the 20 common amino acids have have side chains that contain carboxylate groups? Draw a dipeptide of these two amino acids at pH 7. (3 pts)6) Two of the 20 common amino acids contain two chiral centers_ Draw a dipeptide of these two amino acids at pH 7 and label the chiral centers with asterisks. (3 pts)7) Use wedges (or similar diagram) t0 draw D-alanine and L-alanine. Which is most commonly found in proteins? (3 pts)
5) Which two of the 20 common amino acids have have side chains that contain carboxylate groups? Draw a dipeptide of these two amino acids at pH 7. (3 pts) 6) Two of the 20 common amino acids contain two chiral centers_ Draw a dipeptide of these two amino acids at pH 7 and label the chiral centers w...
1 answers
Two lenses, of focal lengths $+6.0 \mathrm{~cm}$ and $-10 \mathrm{~cm}$, are spaced $1.5 \mathrm{~cm}$ apart. Locate and describe the image of an object $30 \mathrm{~cm}$ in front of the $+6.0-\mathrm{cm}$ lens.
Two lenses, of focal lengths $+6.0 \mathrm{~cm}$ and $-10 \mathrm{~cm}$, are spaced $1.5 \mathrm{~cm}$ apart. Locate and describe the image of an object $30 \mathrm{~cm}$ in front of the $+6.0-\mathrm{cm}$ lens....
5 answers
Given: fkx) J4x2 + 4x +3, g(X)FNAx #Z find: (f 0 g)x)8 16 X2 + 16x +50 16 x? + 16x + 19IC 4x2+4X T [email protected] 4x? + 16xl+ 5
Given: fkx) J4x2 + 4x +3, g(X)FNAx #Z find: (f 0 g)x) 8 16 X2 + 16x +5 0 16 x? + 16x + 19 IC 4x2+4X T 4 @ 4x? + 16xl+ 5...
5 answers
F. NO CHANGEG. on themselves performH. by itself performsJ. on itself performs
F. NO CHANGE G. on themselves perform H. by itself performs J. on itself performs...
5 answers
6. Let X and Y have joint probability density function f(x,Y) (€,y) = 12e (41+3y) for € > 0, and y > 0. Find:Pr {X = Y} (b) Pr {min(X,Y) > 1/4}, Pr {X < Y}, the marginal probability density function of X, EIXY]:
6. Let X and Y have joint probability density function f(x,Y) (€,y) = 12e (41+3y) for € > 0, and y > 0. Find: Pr {X = Y} (b) Pr {min(X,Y) > 1/4}, Pr {X < Y}, the marginal probability density function of X, EIXY]:...
5 answers
8. An object with a mass of 6 kg is lifted vertically 8 m from the ground level; another object Il with a mass of 4 kg is lifted 12 m up. Which of the following statements is true?Object has greater potential energy since it is heavier Object II has greater potential energy since it is lifted to a higher position Two objects have the same potential energyA) only B) Il only C) IIl only D) and Il only
8. An object with a mass of 6 kg is lifted vertically 8 m from the ground level; another object Il with a mass of 4 kg is lifted 12 m up. Which of the following statements is true? Object has greater potential energy since it is heavier Object II has greater potential energy since it is lifted to a ...
5 answers
The Question dilution 10 of 14 equation. L 1equmion ancere sludent olumt . (oeolvset and Vi for the respectively prepare 1 rolune mf initial slock 1 concentration and [ uqucuu: H,O, 6y pluvgtnon Len 1 3 M 1 1 1 Ule mumein {#Attcmpt $ 1
The Question dilution 10 of 14 equation. L 1 equmion ancere sludent olumt . (oeolvset and Vi for the respectively prepare 1 rolune mf initial slock 1 concentration and [ uqucuu: H,O, 6y pluvgtnon Len 1 3 M 1 1 1 Ule mumein { # Attcmpt $ 1...
5 answers
Soru Sayisi: 15, Coziilen: Kalan: 15 Kalan Sureniz: (Is 15d 28sn ) Ayni anda birden cok oturum acan kullanicinin sinavi gecersiz sayilacaktiri _SORU-4In a certain region of space the electric potential is given by V(x,y) = (2x? 3y3 ) in Volts Find the electric field E(x,Y) for the location, given as (x,y) = (1,1) ?A-)4i + 9jB-)-12i + 6jC-)6i - 6jD-)E-)9i - 8jSORU-5Iwo cylindrical wires _ and Blare made of different materials and each have length L
Soru Sayisi: 15, Coziilen: Kalan: 15 Kalan Sureniz: (Is 15d 28sn ) Ayni anda birden cok oturum acan kullanicinin sinavi gecersiz sayilacaktiri _ SORU-4 In a certain region of space the electric potential is given by V(x,y) = (2x? 3y3 ) in Volts Find the electric field E(x,Y) for the location, given...
5 answers
10. Suppose now that each game has three possible outcomes: VOI gain with probability p. with probability q or 0 with probability where p + q + As usual, games are independent, and yOu start with wealth k and stop when YOu reach 0 Or m_ Find the probability than YOu reach m If p = q = s = 1/3. find the expected time to reach 0 or m
10. Suppose now that each game has three possible outcomes: VOI gain with probability p. with probability q or 0 with probability where p + q + As usual, games are independent, and yOu start with wealth k and stop when YOu reach 0 Or m_ Find the probability than YOu reach m If p = q = s = 1/3. find ...

-- 0.022071--