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help with assignment please


nativelover

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hi everyone my assignment is due in tommorow and i have two questions that i do not understand :cry::cry:

the full capacity of an aquarium that is 1metere x 500mm x 500mm

volume=

empty weight=

total weight=

the full capacity of an aquarium that is 600mm x 300mm x 300mm

volume=

empty weight=

total weight=

any help would be so good thanks :hail::hail:

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In a way that you will actually learn something:

Calculating the volume of a rectangular or square 3D shape (eg fish tank) is LITERALLY length TIMES width TIMES height.

The first part (L x W) gives you the area, then multiplying that by the height (x H) makes it the three dimensional volume.

For any other shape you still need to calculate the flat cross-sectional area. So for a cylinder you first calculate the area of the circle, then multiply it by the length. For a hexagon, work out the area of the hexagon, then multiply it by the length.

Next part, volume.

A litre of water weighs one kilogram (roughly, this alters slightly with temperature and salinity)

Empty weight.

For that you need to know the thickness of the glass, and work the square metreage of all the panes added together.

Then work out the weight of each pane (there is probably a standard weight-per-square metre).

Then multiply the weight per square metre by the number of square metres.

(also, just google!! There are a billion pages clearly explaining this sort of maths, and calculators like LivingArt posted)

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hi everyone i got the results back for the second time and failed the two questions again could someone please tell me ive used the website and asked my maths teacher but am still unsure. it is due tommorow so need the answers urgently thanks

the full capacity of an aquarium that is 1metere x 500mm x 500mm

volume=

empty weight=

total weight=

the full capacity of an aquarium that is 600mm x 300mm x 300mm

volume=

empty weight=

total weight=

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all of the answers are above but do we have all the info? Does it have lids? What thickness of glass? Any additional bracing? there are several variables to your question.

to work out the litres exactly you need to determine the glass thickness, this thickness will also determine the empty & total weight.

1.0x0.5x0.5

volume: is 0.25m3/250L overall (outside of tank panels), for actual litres you will need to deduct the glass thickness.

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Did your teacher tell you why you failed? It is all very simple maths but if he wants to get complicated then (as Smidey has suggested) you can add glass thickness into volume, bracing in weight and even how full the tank is, in a practical sense if you have gravel/rocks in the tank it can change things even more. But IMO if the teacher wants that then he has to give all the details in the question.

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it is all done out of school and i just send away my papers

i put

the full capacity of an aquarium that is 1metere x 500mm x 500mm

volume= 250 litres

empty weight= 51kg

total weight=28kg

the full capacity of an aquarium that is 600mm x 300mm x 300mm

volume= 47litres

empty weight=18kg

total weight=65kg

and got them wrong sorry im just stressing because its due tommorow morning and its my last attempt so if i get it wrong i fail my whole course :cry:

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thats all the question says sorry ?

but in the manual it says

the formula to calculate the volume of an aquarium is

lengthxwidthxheight= volume in cubic metres

the calculation is L x W x H x 1000 = litres

COMMON SIZED AQUARIUMS

length height minium glass thickness

1200 500 6.8

1200 500 9.3

1800 600 9.1

1800 600 12.6

1200 300 3.2

1200 300 4.4

600 600 6.0

600 600 8.3

300 600 4.4

300 600 6.0

1400 500 6.9

1400 500 9.6

1600 600 9.1

1600 600 12.6

2400 600 9.1

2400 600 12.6

2400 500 6.9

2400 500 9.6

1800 700 11.5

1800 700 15.8

2030 830 14.4

2030 830 19.9

1200 940 15.0

1200 940 20.7

400 300 2.7

400 300 3.7

600 300 3.0

600 300 4.1

600 450 5.0

600 450 6.8

1000 700 9.6

1000 700 13.3

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yeah sorry got them wrong way around :roll:

Enter the Aquarium Dimensions in mm.

Zero Values will stop the calculation.

Aquarium Height 300mm

Aquarium Length 600mm

Aquarium Width 300mm

Water Height 270mm

Glass Thickness Front 3.0

Glass Thickness Sides 3.0

Glass Thickness Bottom 3.0

Aquarium Volume = 51.866892 Litres

Empty Aquarium Weight (approx) = 5 kg

Aquarium Total Weight (approx) = 56 kg

would this be right ?

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