Question about Office Equipment & Supplies

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Posted on Jan 02, 2017

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1 square mile = 2.589988 sq klms

a square mile is an area 1 mile by 1 mile so the conversion is sq klms not the linear measurement of klm

1 mile = 1.609344 klms

a square mile is an area 1 mile by 1 mile so the conversion is sq klms not the linear measurement of klm

1 mile = 1.609344 klms

May 06, 2017 | Office Equipment & Supplies

Stone is approximated at about 2700 lbs. per cu. yd.

An acre is 43560 sq. ft.

8.5 acres is 370260 sq. ft.

There 9 sq.ft. per sq. yd., thus there are 41140 sq. yds. in 8.5 acres.

A cubic yard is 3 feet by 3 feet by 3 feet (LxWxH).

Since you are only going to be at 1.5 feet, each square yard is equal to 1/2 cubic yard, so to figure the cubic yards divide sq.yds. by 2, thus you get 20570 cu. yds. of stone.

20570 x 2700 = 55539000 pounds. Divide by 2000 to get tons:

55539000/2000 = 27769.5 tons.

An acre is 43560 sq. ft.

8.5 acres is 370260 sq. ft.

There 9 sq.ft. per sq. yd., thus there are 41140 sq. yds. in 8.5 acres.

A cubic yard is 3 feet by 3 feet by 3 feet (LxWxH).

Since you are only going to be at 1.5 feet, each square yard is equal to 1/2 cubic yard, so to figure the cubic yards divide sq.yds. by 2, thus you get 20570 cu. yds. of stone.

20570 x 2700 = 55539000 pounds. Divide by 2000 to get tons:

55539000/2000 = 27769.5 tons.

Nov 16, 2016 | Office Equipment & Supplies

Simply square the conversion factor between feet and metres to get the conversion factor between square feet and square metres.

One foot is 0.3048 metres, so squaring that gives one square foot is 0.09290304 square metres.

One foot is 0.3048 metres, so squaring that gives one square foot is 0.09290304 square metres.

Aug 20, 2013 | Casio Brand New-Fx-991es Plus - Scientific...

16.41 km/l

Apr 15, 2011 | Ford Explorer Sport Cars & Trucks

The surface area of the outer surface is the circumference of the outside of the pipe times its length. So, if OR is the radius of the outside of the pipe and SO is the outer surface area,

SO = 2 * pi * OR * 14

Similarly, the surface area of the outer surface is SI = 2 * pi * IR *14 (if SI is the inner surface area and IR is the radius of the inside of the pipe.

The question states that the difference between the outside surface area and the inside surface area is 88 sq. cm:

SO - SI = 88 ; substituting:

(2 * pi * OR * 14) - (2 * pi * IR * 14) = 88 ; factoring

(2 * pi * 14) (OR - IR) = 88 ;dividing both sides by 2*pi*14

(OR - IR) = 88/(2 * pi) = 88/(2 * 3.14159*14) = 1.00

So, the outside radius is 1 cm more than the inside radius.

It's not clear if the volume stated is the volume of the metal in the pipe or the volume of air inside the pipe, so I will solve it both ways:

If volume of 176cc is of the air inside, the formula for this volume is 14 * pi * IR *IR

176 = 14 * 3.14159 * IR * IR ; dividing both sides by 14 * 3.14159

176/(14 * 3.14159) = IR * IR ; doing the arithmetic

4 = IR * IR ; taking the square root of both sides

sqrt(4) = IR

**IR = 2 cm**

substituting back into the first equation, the OR is 1cm more than the IR, so

**OR = 3 cm**

If volume of 176cc is of the iron in the pipe, the formula for that volume is the difference between the volume of the outside of the pipe and the volume of the inside of the pipe, or

(14 * pi * OR * OR) - (14 * pi * IR * IR) = 176 ; factoring

(14 * pi) ((OR * OR) - (IR * IR)) = 176 ; dividing both sides by 14 * pi

((OR * OR) - (IR * IR)) = 176/(14 * 3.14159) = 4

but, since OR is 1 cm more than IR (from above), we can substitute OR = IR + 1

and OR * OR = (IR + 1) * (IR + 1) = (IR*IR) + 2*IR +1

So, ((OR * OR) - (IR * IR)) = 4 becomes

(IR*IR) + 2*IR +1 - (IR*IR) = 4 ; simplifying (IRsquared - IRsquared = 0)

2*IR + 1 = 4 ; subtract 1 from both sides

2*IR = 3 ; divide both sides by 2

IR = 3/2 ;

**IR = 1.5cm**

**OR = 2.5cm**

SO = 2 * pi * OR * 14

Similarly, the surface area of the outer surface is SI = 2 * pi * IR *14 (if SI is the inner surface area and IR is the radius of the inside of the pipe.

The question states that the difference between the outside surface area and the inside surface area is 88 sq. cm:

SO - SI = 88 ; substituting:

(2 * pi * OR * 14) - (2 * pi * IR * 14) = 88 ; factoring

(2 * pi * 14) (OR - IR) = 88 ;dividing both sides by 2*pi*14

(OR - IR) = 88/(2 * pi) = 88/(2 * 3.14159*14) = 1.00

So, the outside radius is 1 cm more than the inside radius.

It's not clear if the volume stated is the volume of the metal in the pipe or the volume of air inside the pipe, so I will solve it both ways:

If volume of 176cc is of the air inside, the formula for this volume is 14 * pi * IR *IR

176 = 14 * 3.14159 * IR * IR ; dividing both sides by 14 * 3.14159

176/(14 * 3.14159) = IR * IR ; doing the arithmetic

4 = IR * IR ; taking the square root of both sides

sqrt(4) = IR

substituting back into the first equation, the OR is 1cm more than the IR, so

If volume of 176cc is of the iron in the pipe, the formula for that volume is the difference between the volume of the outside of the pipe and the volume of the inside of the pipe, or

(14 * pi * OR * OR) - (14 * pi * IR * IR) = 176 ; factoring

(14 * pi) ((OR * OR) - (IR * IR)) = 176 ; dividing both sides by 14 * pi

((OR * OR) - (IR * IR)) = 176/(14 * 3.14159) = 4

but, since OR is 1 cm more than IR (from above), we can substitute OR = IR + 1

and OR * OR = (IR + 1) * (IR + 1) = (IR*IR) + 2*IR +1

So, ((OR * OR) - (IR * IR)) = 4 becomes

(IR*IR) + 2*IR +1 - (IR*IR) = 4 ; simplifying (IRsquared - IRsquared = 0)

2*IR + 1 = 4 ; subtract 1 from both sides

2*IR = 3 ; divide both sides by 2

IR = 3/2 ;

Jan 11, 2011 | Mathsoft StudyWorks! Mathematics Deluxe...

Hi chris. If you are asking for the conversion factors, here you go:

1.6 km/h = 1 mph

1 km/h = 0.625 mph

so divide the km/h speed by 1.6 to have it in mph

or multiply the mph speed by 1.6 to have it in km/h

Here is a conversion tool you may like http://www.convertunits.com/from/mph/to/kph

and here is another http://www.eforecourt.com/mph_kph_speed_convert.htm

1.6 km/h = 1 mph

1 km/h = 0.625 mph

so divide the km/h speed by 1.6 to have it in mph

or multiply the mph speed by 1.6 to have it in km/h

Here is a conversion tool you may like http://www.convertunits.com/from/mph/to/kph

and here is another http://www.eforecourt.com/mph_kph_speed_convert.htm

Dec 04, 2010 | Cycling

Here are the Specs from Orion's spec sheet.

Sensitivity @ 2.84V/1m 93DB

FS 23Hz

QMS 9.05

QES 0.47

Qts 0.44

BL (Force Factor) 8.7 TM

SD (Piston Area) 500 sq.CM \ 78 sq. in.

VAS (Volume Acoustic suspension) 224 Liters \ 7.92cu.ft

Xmax 7.75MM \ 0.30 in.

Enclosure Recommendations

Sealed Volume 1.60 cu. ft.

Vented Volume 2.75 cu. ft.

Port Dia (Inside Dia.) 4 in.

Port Length 8.5 in.

Sensitivity @ 2.84V/1m 93DB

FS 23Hz

QMS 9.05

QES 0.47

Qts 0.44

BL (Force Factor) 8.7 TM

SD (Piston Area) 500 sq.CM \ 78 sq. in.

VAS (Volume Acoustic suspension) 224 Liters \ 7.92cu.ft

Xmax 7.75MM \ 0.30 in.

Enclosure Recommendations

Sealed Volume 1.60 cu. ft.

Vented Volume 2.75 cu. ft.

Port Dia (Inside Dia.) 4 in.

Port Length 8.5 in.

Nov 07, 2009 | Orion Xtreme XTR15d Car Speaker

There are more factors than sq ft. You have to factor in window surface and R factor of insulation.

Aug 18, 2009 | Heating & Cooling

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