# a closed box of uniform thickness is made of wood 1cm thick. Its extenal dimensions are 6cm and 5 cm by 4 cm. Find the a. volume of the wood used in making the box. b. the capacity of the

130,159 results

### geometry

a closed box of uniform thickness is made of wood 1cm thick. Its extenal dimensions are 6cm and 5 cm by 4 cm. Find the a. volume of the wood used in making the box. b. the capacity of the box, given that the cover is full length and full width c. The interior surface area if ...

### Maths

A closed rectangular wooden box has external dimensions 17x12x10. If the wood is 1cm thick, calculate the volume of wood required to make it. (All measurements are in Cm)

### math

the external dimensions of a closed box are 8cm by 5cm by 4cm. given that the thickness of the wood of which it is made is 0.5cm, find the volume of the wood used to make it.

### Maths

Find the volume of wood required for making the closed box with internal dimensions of 20cm by 12.5cm by 9.5cm;wood 1.25cm thick.

### maths

A box 48 cm by 48 cm by 36 cm high is made of wood .5 cm thick. If the box has no lid, find the volume of wood used in making the box.

### maths

An open rectangular box measuring 28cm by 20cm by 12cm internally is made of wood 0.5 cm thick. find the volume of wood used in making box?

### solid mensuration

If a match box has inside dimensions of 2 in. by 1 ¼ in. by 5/8 in., find the useful capacity of the box. The cover is made with open ends so that the box can slide into it, the fit being snug. If the match box and cover are made of thin slices of wood 1/22 in. thick, find ...

### math

an open rectangular box has external dimensions as follows: 100cm long,90cm wide and 80cm deep if it is made from wood 2cm thick, calculate the volume of wood in the box

### Calc

a large closed storage rectangular box with a base constructed with two different types of wood. the base is made up of wood $5 per square feet and the top and sides are made of wood $3 per square feet suppose the amount available to spend is $1000 find the dimensions of the ...

### maths

An open rectangular box has internal dimensions 2m long, 20cm wide and 22.5cm deep. If the box is made of wood 2.5cm thick, calculate the volume of the wood in cm cube.

### math

a cubical wooden box of internal edge 1m is made of 5cm thick wood.The box is open at the top . if the wood costs Rs. 9600 per cubic metre, find the cost of the wood required to make the box?

### optimization calculus

sandy is making a closed rectangular jewwellery box with a square base from two different woods . the wood for top and bottom costs $20/m^2. the wood for the side costs $30/m^2 . find dimensions that minimize cost of wood for a volume 4000cm^3?

### maths

The inner dimensions of wooden box are 2m, 1.2m, 0.75m. the thickness of wood is 2.5cm.find the cost of wood if the cost of wood of 1cubic metre is rs.5400

### Maths

A box is made of wood 5cm thick, its internal dimension are 10cm by 8cm by 11cm, what is the volume of the wood in the box

### asthmatics

Find the volume of the wood required to make an open box of internal dimensions 20cm by 12.5cm by 9.5 cm.the wood being 1.5cm thick.

### adv functions

joe is building a wooden cylindrical storage box. the box will have a volume og 6pi m^3. for design purposes, the thick wood for the top and the bottom costs $6/m^2 and the thinner wood for the sides cost $5/m^2. a)express the cost of the wood as a function of the radius. make...

### Calc

Gloria would like to construct a box with volume of exactly 55ft3 using only metal and wood. The metal costs $12/ft2 and the wood costs $9/ft2. If the wood is to go on the sides, the metal is to go on the top and bottom, and if the length of the base is to be 3 times the width...

### Calculus

Gloria would like to construct a box with volume of exactly 45ft^3 using only metal and wood. The metal costs $15/ft^2 and the wood costs $6/ft^2. If the wood is to go on the sides, the metal is to go on the top and bottom, and if the length of the base is to be 3 times the ...

### mathematics

A hemispherical bowl has an external radius of 18cm and is made of wood 3m thick. calculate the volume of the wood in the bowl.

### math

The length of an open-top box is 4 cm longer than its width. The box was made from a 480-cm^2 rectangular sheet of material with 6cm by 6cm squares cut from each corner. The height of the box is 6cm. Find the dimensions of the box. Please show me in detail how to set this up ...

### math

Answer by factoring a quadratic equation. The length of an open-top box is 4 cm longer than its width. The box was made from a 480-cm^2 rectangular sheet of material with 6cm by 6cm squares cut from each corner. The height of the box is 6cm. Find the dimensions of the box. ...

### Physics

A sealed box containing a chunk of ice is made of 2cm thick wood, a good thermal insulator. The air outside the box is warm. It takes the ice one hour to melt. If I had put 2cm of aluminum (a good thermal conductor) around the outside of the box, in contact with the wood, the ...

### math

find the volume of iron required to make an open box whose external dimensions are 36cm×25cm×16.5cm, the box being 1.5cm thick throughout. if 1cm^3 of iron weighs 8.5g. find the weight of empty box in kilogram.

### Physics 30

A 6.8 g bullet travelling at 395m/s goes through a stationary block of wood in 4.3 *10^-4 and emerges at 102 m/s. what average force did the wood exert on the bullet ? how thick is the wood?

### calculus

A box with a square base and an open top is to have a volume of 68in^3 . Neglect the thickness of the material used to make the box, and find the dimensions of the box that would minimize the amount of material used. The width and length of the box are each ___ in. The height ...

### MATH

Okay bottle wooden box of internal age 1 metre is made of 5 centimetre thick would the box is open at the top it would cost rupees 9604 cubic metre. Find the cost of the wood require to make the box.

### chemistry

the density of a piece of wood is 0.638 g/cm3. The dimensions of the block of wood are 40.0 cm by 50.0 cm by 25.0 cm. What is the mass of the block of wood? Show all calculations.

### Maths

A bookshelf has 5 shelves its made from wood that is 30 mm thick and the shelves are evenly spaced Bookshelf is 2100mm high 600mm long and 300mm wide Mark out the sides and shelves from a piece of wood 2400mm long and 1200mm wide a saw cut is approximately 3 mm thick

### physics

The 2.0 kg wood box in the figure(Figure 1) slides down a vertical wood wall while you push on it at a 45 ∘ angle. The coefficient of kinetic friction of wood on wood is μk = 0.200. What magnitude of force should you apply to cause the box to slide down at a constant speed...

### physics

The coefficient of kinetic friction for wood on wood is o.55. The coefficient of kinetic friction for wood on wood is 0.68. For a 3.5kg wood block being pulled horizontally: a. what is the pull force needed to start the wood block moving on a wood floor? b. how hard would you ...

### Plane and Solid Geometry

A piece of wood whose ends are square was cut from a cylindrical piece of wood which was cut from the same pieces of wood whose ends are squares 10 centimeter by 10 centimeter and length 20 centimeter. Find the volume of wood(smallest volume) with the least waste.

### Mathematics

Find the volume of a closed cylinder with thickness 1.2cm and diameter 17.1cm take pie=3.14

### maths

jerry bought a piece of wood 5m long. he used 3/8 of the wood for a frame. and 1/5 to fix a door. he used the remainder of the wood on a kitchen cupboard. what fraction did he use on the cupboard

### Calculus

I actually have two questions: 4. An open box is to be made from a rectangular piece of material 3m by 2m by cutting a congruent square from each corner and folding up the sides. What are the dimensions of the box of the largest volume made this way, and what is the volume? 5...

### physics

a 3.0 kg wood box slides from rest down a 30.0 degree inclined plane. How long does it take the box to reach the bottom of the 4.75 m wood incline? The coefficent of friction is 0.30.

### Math

cheryl used 1 inch thick wood to build a planter for some flowers. the planter has 4 sides and a bottom but no top. the outside dimensions are 3 feet long, 6/12 inches wide, and 6/12 inches high. cheryl wants to know how much space the planter takes up. what is the volume of ...

### physics... PLEASE HELP

he thermal conductivity of concrete is 0.80 W/m-C° and the thermal conductivity of wood is 0.10 W/m-C°. How thick would a solid concrete wall have to be in order to have the same rate of flow through it as an 8.0 cm thick wall made of solid wood? (Assume both walls have the ...

### Maths - Algebra

Boxes are made by cutting 8cm squares from the corners of sheets of cardboard and then folding. The sheets of cardboard are 6cm lnbger than they are wide. width of sheet= x length of sheet = x+6 length of finished box = (x-10) width of finished box = (x-16) volume of the box...

### physics

The thermal conductivity of concrete is 0.80 W/m-C° and the thermal conductivity of wood is 0.10 W/m-C°. How thick would a solid concrete wall have to be in order to have the same rate of flow through it as an 8.0 cm thick wall made of solid wood? (Assume both walls have the...

### physics

A bullet of mass 10 g has a speed of 500 m/s. a) What is its kinetic energy? b) if it penetrates a block of wood a distance of 10 cm before coming to rest, what is the average frictional force stopping the bullet? A second bullet identical to the first is shot through a sheet ...

### Math

Thomas needs to cut a piece of wood for a model airplane he is builing. He has four peices of wood: 5 ft, 4 ft, 6 ft, 3 ft long. If the length of wood he needs to cut √11 ft long, which peice of wood should be cut to have the least amount of unused wood.

### physics

Q.a cube of wood 20cm on each side,floats in water so that 30% is above the surface of the water,and 70% is below.what is the density of the wood(justify the answer) i.what mass of lead mass has to be placed on the top of the block of wood,so that it wi;; just be totally ...

### physics

Q.A cube of wood 20cm on each side,floats in water so that 30% is above the surface of the water,and 70% is below. i.what is the density of the wood(justify the answer) ii.what mass of lead mass has to be placed on the top of the block of wood,so that it with just be totally ...

### Math

Yessica needs to buy some wood to build a box. She mu8st calculate the surface area of the box to determin ehow much wood to buy. The box must me 2 feet long and 3 feet wide. I need the answer to this question ?

### physics

a piece of wood 50 cm long , 20 cm wide, 40 cm thick. its density is 0.6 g cm^3. this is connected to a string with negligible mass attached to a piece of lead. what is the mass of the lead and what volume underneath is needed to sink the wood in calm water so that its top is ...

### maths-surface area

there is a groove which is in a cylindrical form and is made in a cylindrical piece of wood of length 17.5cm. The groove is filled with graphite and the cylindrical graphite block is of same length as that of wooden piece. If the diameter of the graphite cylinder is 3mm and ...

### physics

a piece of wood of volume 200cm3 and density of 1.05gm/cm3. what volume of wood would remain above the surface of the liquid

### maths-surface area

Cylindrical groove is made in a cylindrical piece of wood of length 17.5cm. The groove is filled with graphite and the cylindrical graphite block is of same length as that of wooden piece. If the diameter of the graphite cylinder is 3mm and outer diameter of the wooden ...

### calculus

A rectangular fence has to be built from both wood and metal so that opposite parallel sides of the fence are made from the same type of material. The wood costs $10 per foot and the metal costs $20 per foot of the fence used. If you only have $400 to spend on material, what ...

### English

1. He is try to hit a piece of wood with an axe to cut it. (Is this correct?) 2. a piece of wood, two pieces of wood (Do we use these expressions? What about a wood, or two woods?)

### math

find the volume of iron required to make an open box whose ,external dimensions are 36 cm *25 cm *16.5 cm, the box being 1.5 cm thick throughout . if 1 cm ^3 of iron weights 8.5 grams , find the weight of the empty box in kilogramsfind the volume of iron required to make an ...

### fun

how much wood could a wood chuck chuck if a wood chuck could chuck wood?:) Thank you for using the Jiskha Homework Help forum. A woodchuck is a groundhog. The word itself is of Algonquian origin for this marmot. Since "chuck" means "discard" I doubt a woodchuck would have ...

### Math

Write the argument below in symbols to determine whether it is valid or invalid. State a reason for your conclusion. Specify the p and q you used. Either the gazebo is made of wood or the vine is growing on the gazebo. The gazebo is not made of wood. The vine is growing on the...

### science

If wood weights 18 grams with a density of 0.5 what is the volume ans what type of wood is it

### Science

A block of wood has a mass of 120 g and volume of 200 cm3. What is the density of the wood?

### calculus

An open box is to be made out of a 8-inch by 14-inch piece of cardboard by cutting out squares of equal size from the four corners and bending up the sides. Find the dimensions of the resulting box that has the largest volume. Dimensions of the bottom of the box: Height of the...

### calculus

A closed cardboard box is made with a square top and bottom, and a square horizontal shelf inside that divides the interior in half. A total of 12 square meters of cardboard is used to make the top, sides, bottom, and shelf of the box. What should the dimensions of the box be ...

### English

1. The table is made of stone. 2. The table is made out of stone. 3. The table is made from stone. (Which one is correct?) 4. Paper is made of wood. 5. Paper is made out of wood. 6. Paper is made from wood. (What about these sentences? Which one is grammatical? And would you ...

### Physics-science

A block of wood has a mass of 3.6kg and specific gravity of 0.6. It is to be loaded with lead of density of 11300 kg per cubic metre so that it floats in water with 0.90 of its volume immersed. What mass of lead is needed? (a) if the lead is on top of the wood? (b) if the lead...

### math / geometry

Write the argument below in symbols to determine whether it is valid or invalid. State a reason for your conclusion. Specify the p and q you used. Submit your full detailed solution to the dropbox. If the gazebo is made of wood, then the vine is growing on the gazebo. The vine...

### Physics (density)

A boat made of wood (each piece 5cm in width) begins to sink. To Save yourself you grab a block made of the wood. Determine the area of it, making sure it will hold at least 100kg of weight without sinking.

### Math

Sara bought 2 boards of wood one board is 18 inches the other is 30 inches she wants to cut the wood into longest equal parts with no wood left over does Sara have enough wood for 10 equal size peices

### math

the diagram shows a piece of wood in the shape of a cuboid. diagram: 3cm width, 20cm length, 1.2m for the volume of cuboid The piece of wood is 3cm by 20cm by 1.2m. The mass of wood will float in sea water if the density of the wood is less than the density of the sea water. ...

### physics

an archer shoots an arrow into a piece of wood. the arrow is traveling at 120km/h when it strikes the wood. the arrow penetrates 3.8cm into the wood before stopping. what is its average acceleration (in m/s squared) into the wood?

### Calculus

A closed box is to be a rectangular solid with a square base and volume of 12 ft^3. Find the most economical dimensions if the top of the box is twice as expensive as the sides and bottom.

### Physics

an anchor shoots an arrow into a piece of wood. the arrow is traveling at 120 km/h when it strikes the wood. the arrow penetrates 3.8 cm into the wood before stopping. what is the average acceleration (in m/s^2) into the wood?

### Physics

An archer shoots an arrow into a piece of wood. The arrow is traveling at 120 km/h when it strikes the wood. The arrow penetrates 3.8 cm into the wood before stopping. What is its average acceleration (in m/s2) into the wood?

### physics

A 25 g bullet is fired from a gun into a 1.35 kg block of wood initially at rest. (The bullet sticks in the wood). The wood is driven 9.5 m across a horizontal surface with coefficient of friciton 0.25. Find the speed of the bullet just before impact.

### Physics

A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water. What is the mass of ...

### Physics

A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water. What is the mass of ...

### Physics

Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except that one is made of wood (mass = 0.17 kg) and the other of metal (mass = .85 kg). They are ...

### Physics

A closed box is filled with dry ice at a temperature of -81.5 C, while the outside temperature is 27.4 C. The box is cubical, measuring 0.307 m on a side, and the thickness of the walls is 4.47 × 10-2 m. In one day, 3.37 × 106 J of heat is conducted through the six walls. ...

### English

I am going to be writing a persuasive essay on the quote, "A closed mind is like a closed book: a block of wood" is true. I am also meant to try to respond to a counter argument that could be made against the quote. But,

### Physics Please help

A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water. What is the mass of ...

### physics

If 80% of a piece of wood is submerged in water before oil is added, find the fraction submjerged when oil with a density of 781 kg/m^3 covers the block. (Don't neglect the buoyant force of air before the oil is added). I thought to find the density of wood by setting the % ...

### Maths

The dimension of a closed box are 30cm by 20cm by 10cm high. If the thickness of all six panels is 1 cm find its volume.

### Chemistry

1. A piece of rectangular wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0 grams. What is the density of the wood? Would the piece of wood float in water? 2. I threw a plastic ball in the pool for my dog to fetch. The mass of the ball was 125g. What must the ...

### Algebra

A wooden plank is 5 feet long and 1 1/2 inches thick. To make the plank 1 1/8 inches thick, a carpenter removes the same thickness of wood from the top and bottom of the plank. How many inches does the carpenter remove from the top of the plank? Express your answer as a common...

### Math

The strength S of a rectangular beam varies jointly as its width w and the square of its thickness t. If a wood beam 3 inches wide and 5 inches thick supports 300 pounds, how much can a similar beam 3 inches wide and 8 inches thick support? S=? pounds

### Calc

An open box is to be made out of a 10-inch by 16-inch piece of cardboard by cutting out squares of equal size from the four corners and bending up the sides. Find the dimensions of the resulting box that has the largest volume. Dimensions of the bottom of the box:

### Physics

Two blocks of identical mass are placed in water. One is made of aluminum, the other of wood. The wood block is noted and therefore floating. Upon which is the buoyant force greater? 1) on the aluminum block, 2) on the wood block or 3) they both experience the same buoyant force.

### Physics

Two blocks of identical mass are placed in water. One is made of aluminum, the other of wood. The wood block is noted and therefore floating. Upon which is the buoyant force greater? 1) on the aluminum block, 2) on the wood block or 3) they both experience the same buoyant force.

### math

Tomas needs to cut a piece of wood for a model airplane he is building. He has four pieces of wood: 5 feet, 4 feet, 6 feet, and 3 feet long. If the length of wood he needs to cut is 11 square root feet long, which piece of wood should he cut to have the least amount of unused ...

### Calculus

A closed box with square base is to be built. the bottom and the top of the box are to be made of a material costing $2/ft^2, and all four sides are to be made of a material costing $1/ft^2. what are the dimensions of the box of the greatest value that can be constructed for $12?

### Math

find the volume of iron require to make an open box whose external dimensions are 36 cm * 25cm* 16.5 cm and 1.5 cm thick throughout. if 1 cm3 of iron weighs 8.5 grams, find the weight of the empty of box in kilograms..

### Physics

Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except that one is made of wood (mass = 0.17 kg) and the other of metal (mass = 0.85). They are ...

### Physics

Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except that one is made of wood (mass = 0.17 kg) and the other of metal (mass = 0.85). They are ...

### algebra

Same question as katie, a cubic storage box is made with 96sq ft of wood. What is the length of each edge? if you use V=s3 How do you find s?

### math

so if my question is find the dimensions of a box that will hold twice as many cubes as a box that is 2 by 6 by 4 a] volume of original box: 48 b]volume of new box is :96 c] dimensions of new box is 12 by 4 by 2

### science

If the density of a piece of wood and the density of water are exactly the same, how much of the piece of wood remains above the water if it has a thickness of 5cm?

### physics

Ten bags of top soil, each weighing 150 N, are placed on a L = 2.95 m long sheet of wood. They are stacked 0.50 m from one end of the sheet of wood, as shown in Figure 8-27. Two people lift the sheet of wood, one at each end. Ignore the weight of the wood, how much force must ...

### physics

Ten bags of top soil, each weighing 180 N, are placed on a 2.90-m long sheet of wood. They are stacked 0.50 m from one end of the sheet of wood, as shown below. Two people lift the sheet of wood, one at each end. Ignore the weight of the wood, how much force must each person ...

### English

1. The wolf climbed Ted's house and came down through the chimney. He was burned to death because of the fire in the fireplace. 2. The wolf climed Ted's house and went through the chimney. Ted made a strong fire in the fireplace. He fell in the fire of the fireplace. He was ...

### Physics

a bullet fired at a wooden block of thickness 0.15m manages to penetrate the block. if the mass of the bullet is 0.025kg and average resisting force of the wood is 7x 10^3 N , Calculate the sppeed of the bullet just before it hits the wood block

### calculus

An open rectangular box having a volume of 256 is to be constructed from a tin sheet. Find the dimensions of such a box if the amount of material used in its construction is to be minimal. Hint: Let the dimensions of the box be x by y by z . Then, xyz=256 and the amount of ...

### algebra

A rectangular box has Dimensions 16 inches and 22 inches and volume 4224 cubic inches. If the same amount is decreased from the largest and smallest sides, the volume of the new box is 6/11 of the first box. Find the dimensions of the second box.

### Physics

fire places are usually built so has to be very shallow with high backs. often they have structures to hold the burning logs apart. in a wood stove, the fire is inside a box that sits in the middle of the room. describe the heating mechanisms used by each. would the wood stove...

### math

Frank has a rectangular piece of wood 45 cm by 75 cm. what are the largest identical squares. Frank can make by cutting the wood. What assumptions have you made.

### physics lab

For a physics lab, I measured length, width, thickness, and mass of 2 blocks of wood, 3 trials each. There were 2 questions on the lab that I did not understand how to do. 1. For each trial, find the ratio between the mass and the volume. Based on your data, what is the ...