answer is 25.7cm but how?can anyone explain it for me?
119919
One full rotation of the tip is:\n\n2 pi r \n2 pi 9.8cm\n\nin 25 min the tip will make 0.42 rotation (25/60)\n\nso 25/60 * 2 pi 9.8 =  25.7
76407
The distance around it.The circumference.
521270
ok my friend\ni assume that by now you know that maximum distance is achieved by throwing something at 45 degrees. so start by that and take into consideration that Ux is constant and is Ucos45\nso \nt = 75 / Ucos45\n\n\nnow at 75meters the Height is zero for Uy component\nmeaning that \n\n0 =H = Uyt - 1/2gt^2 =>\n\nusin\n\nUsin45 *  = 1/2 g * 75/Ucos45 ==>\n\nU = sqrt ( 75*9.81) => U = 27.12 m / sec\n\ni used the fact that time is the same and for Ux the distance is 75 but the same time leads to height zero for Uy.\n\n\nnou UX = S/t=>\nt = 75 /Ucso45* \n\nand t=3.91sec
550549
ok, im going to assume that you know (rho)(g)(h) = pressure\n\nlets label 4 points:\nA is at the bottom of the 1.28cm mark\nB is at the top of the 1.28cm mark\nC is at the bottom of the hl mark\nD is at the top of the hl mark\n\nNotice 2 things:\n1. the pressures at A on the right and the left must be the same\n2.if you removed the same amount of blue from both sides, hl would still be the same measurement (so lets remove it for calulations)\n\nnow the blue on the left side is of a height of 1.28+hl and the green on the right is 1.28\n\nat the top they are equal, so:\n2.25*g*(1.28+hl)=8.41*g*(1.28)\n2.25(1.28+hl)=8.41*1.28         g cancels from both sides\n2.25*1.28+2.25*hl=8.41*1.28\n2.88 + 2.25hl = 10.765\n2.25hl = 10.765 - 2.88=7.885\nhl = 7.885/2.25 = 3.50435.....cm
585801
I am guessing 168 Ft. This doesn't seem right to me, and I'm not sure if I did it the correct way:\n\n                       7 \n*                      7 \n=             ----------\n                      49 \n ------------------------------         \n                       24 \n*                     24 \n=             ----------\n                     576 \n-------------------------------         \n                      49 \n*                    576 \n=             ----------\n                   28224 \n-------------------------------         \n                   28224 \nsquare root\n                     168
16334
20 cm unless you are near-sighted, in which case it is closer
45387
A man 6.25 feet tall casts a 5-foot shadow. At the same time, a nearby tree casts a 20-foot shadow. How tall is the tree?\n============================================================\n\nSimple ratio/proportion problem:\n\n6.25 feet : 5-foot shadow :: x feet : 20-foot shadow\n\n6.25/5 = x/20\n20(6.25) = 5x\n4(6.25) = x\n25 = x\n\nThe tree is 25 feet tall.
157620
Well, now dummy, let's think this one through.  First, let's divide the sucker by 12 and see what we get.\n\n495.923 / 12 = 41.3296 feet\n\nSo, we see it is 41 feet plus a tad more, almost a third of a foot as a matter of fact.\n\nNow how many inches is .3296 foot?\n\nWell, 1 inch divided by 12 = 0.0833, so each inch is .0833 of a foot.\n\nSo, .3296 / .0833 = 3.95 inches\n\nNow we have it narrowed down to 41 feet, 3.95 inches.\n\nYou should realize that 95/100 of an inch would be 19/20.\n\nSo if you want all fractions it is 41 feet 3 and 19/20 inches.\nThis is the same as 41 feet 3.95 inches\n\nThere is probably an easier way to figure this out but I just go through things logically.  You could figure this out too if you didn't spend so much time playing stupid video games.
599008
at the very least seven inches.
207246
The answers for these questions:\n\nAnswer 1: (c) 27 meters\nAnswer 2: (d) .5 km\n\nAlthough the answer to 2nd question should be 0.4 kms, but I reckon it's just approximate. \n\nYou can email me for further help by clicking Contact Nitro in my answers profile.
53264
2.5 Centimetres is 1 Inch and one foot is 12 Inches and 1 Meter is 100 Centimetres so 170m is 17,000 Centimetres divide by 2.5 is 8,500 - 50% 0.5 = 25% = 8,500 - 2,125 = 6,375 Inches divide by 10 = 637.5 divide by 50% = 318.75 Feet! 3/4 of 12 = 9 so its 318 Feet and 9 inches.\nDo you mean 1.7 Metres? (I will have to study another hour.)So 3 feet = 1 Meter so Its 5 Feet 7 inches to work it out simply use My Logical Theroem so its 1.7 Meters or 170 Centimetres So half biggest so its 5 foot and then divide the 7 by 10! Blindingly simple!\nP.S I spent 3 Hours trying to work out a theroem, please give me a best answer and that will be much appreciated.
266280
7 meters long and 5 m. wide
353792
tan7.5° = 3.25/L\nThus L = 3.5/tan7.5°\n≈ 26.59 ft
531660
51kg x 25 m = energy used\n\ndivide the energy used by 0.30 to get the second answer
448503
From the Question, it should be a triangle....\nso take take 28 X 25 / 2 should be the answer\n350 ft!
369414
So R=1.6*r; R for body, r for head; and H1=K1*R is the distance from body center to the feet, K1=0.8; and h=k*r is the distance from head center to the neck, k=0.9; Now neck radius p=sqrt(r^2-h^2) and p=sqrt(R^2-H2^2), H2=K2*R is distance from body center to the neck, K2 being unknown.  Find K2;  p^2 = r^2*(1-k^2) = R^2*(1-K2^2), hence (r/R)^2*(1-k^2)=1-K2^2 and K2 = sqrt(1-(1/1.6)^2*(1-0.9^2)) = 0.9622;\nNow head volume v=v0-v1, v0=(4/3)*pi*r^3, v1=(pi/3)*r^3*(2-3h/r+(h/r)^3) is head cut-off part; v = (pi/3)*r^3*(2+3h/r-(h/r)^3) = (pi/3)*r^3*(2+2.7-0.9^3)\nThe same for body volume V=V0-V1-V2, V=(pi/3)*(1.6*r)^3 * (4-{2-3*K1+K1^3} - {2-3*K2+K2^3});\nW=v+V=r^3*C is the whole volume! To plug in numbers to find C, OK?
386635
7(2m+4) = 14m + 4\nDistribute the 7\n14m + 28 = 14m + 4\nSubtract 14m from each side\n28 = 4 ---> This is false\nAnswer: No solution