A box is contructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $5 per square foot and the metal for the sides costs $2 per square foot. Find the

23,224 results
  1. math

    The dimension of a rectangular metal box are 3 cm,5cm and 8cm.if the first two dimensions are increased by the same number of centimeters, while the third dimension remains the same, the new volume is 34 cubic cetimeters more than the original volume.what

  2. Help me with science please

    In which case would the kinetic energy of particles be increasing? (1 point) Metal is melted at 1,300°C. Metal is at room temperature, 37°C. Metal is heated from room temperature to 200°C. Metal is cooled at 1,300°C.

  3. Science

    In which case would the kinetic energy of particles be increasing? Metal is at room temperature, 37°C. Metal is cooled at 1,300°C. Metal is heated from room temperature to 200°C. Metal is melted at 1,300°C.**

  4. Pre Cal 12

    A 12cm by 8cm rectangular piece of metal is to be made into an open-top box by cutting a sqaure from corner and folding up the resulting flaps (sides). If the volume of the lidless box is 36 cm what are the integer dimensions of the box?

  5. CALCULUS

    A lidless box with square ends is to be made from a thin sheet of metal. Determine the least area of the metal for which the volume of the box is 3.5 m^3.

  6. College Algebra

    A rectanguler piece of metal is 5 inches longer than it is wide. Square with sides 1 inches longer are cut from the four corners and the flaps are folded upward to form an open box. If the volume of the box is 644 inches, what are the original dimensions

  7. Math

    An open box , no more than 5 cm in height, is to be formed by cutting four identical squares from the corners of a sheet metal 25 cm by 32 cm, and folding up the metal to form sides.The capacity of the box must be 1575 (cm squared). What is the side length

  8. Calculus

    You are given a piece of sheet metal that is twice as long as it is wide an has an area of 800m^2. Find the dimensions of the rectangular box that would contain a max volume if it were constructed from this piece of metal by cutting out squares of equal

  9. chemistry

    A 23.9 g piece of metal heated to 97.8 oC is placed in 52.4 g water at 21.9 oC. After the metal is added, the temperature of the water rises to 29.9 oC. Calculate the specific heat of the metal. Express your answer in the units of cal/goC.

  10. Mathematics

    A cylindrical tube, open at both ends, is made of metal. The internal diameter of the tube is 10.4cm and its height is 25 cm. If thickness of the metal is 8mm everywhere, calculatd the volume of metal in the cylinder

  11. inermediate algebra

    A box with no top is to be made by cutting a 2-inch square from each corner of a square sheet of metal. After bending up the sides, the volume of the box is to be 220 cubic inches. Find The the length of a side of the square sheet of the metal that should

  12. physics

    A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 11.2 cm and its length is 21 cm. The metal every where is 0.4 cm thick. Calculate the volume of the metal correct to 1 place of decimal

  13. Physics

    A manufacturer selected a metal to use in producing a lightweight button for clothing. A metal that has a density of 2.71 g/cm3 was selected. Which of the metals was selected? A Metal 1 B Metal 2 C Metal 3 D Metal 4

  14. Math

    If 1600 square centimeters of metal is available to make a box with a square base and an open top, find the largest possible volume of the box. Volume = ?

  15. Chemistry

    A metal bar having a mass of 212 g is heated to 125.0°C and then dropped into 375 g of water at 24°C. After a while the temperature of the water and the metal is 34.2°C. If the specific heat of the metal is 0.831 J/g°C, how much heat did the metal

  16. College Algebra

    A rectangular piece of metal is 15in longer than it is wide. Squares with sides 3 in long are cut from four corners and the flaps are folded up to form an open box. If the volume is 1218in^3, what we’re the original deminsions of the piece of metal?

  17. Calculus

    A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $2 per square foot and the metal for the sides costs $7 per square foot. Find the dimensions that minimize cost if the box has a volume

  18. Calculus

    A cylindrical metal can is made to hold 500ml of soup. Determine the dimensions of the can that will minimize the amount of metal required(assume that the top and sides of the can are made from metal of the same thickness

  19. Maths

    A lidless metal box has external dimensions 25cm×20cm×12cm. If the thickness is uniformly 1 cm, find the volume of metal used in the box.

  20. Math

    An open box, no more than 5 cm in height, is to be formed by cutting four identical squares from the corners of a sheet of metal 25 cm by 32 cm, and folding up the metal to form sides. The capacity of the box must be 1575 cm^3. What is the side length of

  21. physics

    A box, open at the top, in form of a cube of edge length 40 cm, is constructed from a metal plate. Find the coordinates of the center of mass of the box with respect to x, y, and z coordinate system.

  22. MATH

    an electrical transformer box is a rectangular prism constructed from sheet metal. it must have a volume of at least 274 625 cm^3 to hold all the necessary equipment. a) what dimensions for the box require the least area of sheet metal? b) what area of

  23. 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

  24. chemistry pls help me asap

    2.08g of metal Y react with 0.96g of oxygen to form a metal oxide.The empirical formula of the metal oxide is Y2O3.What is the relative atomic mass of metal Y.

  25. Chemistry

    A piece of metal A and a piece of metal B of the same mass and at the same temperature of 80°C are dropped into seperate beakers each containing 100.0 g of water at room temperature. Once they equilibrate, you find that the beaker with the sample of metal

  26. Chemistry

    A metal bar having a mass of 212 g is heated to 125.0°C and then dropped into 375 g of water at 24°C. After a while the temperature of the water and the metal is 34.2°C. If the specific heat of the metal is 0.831 J/g°C, how much heat did the metal

  27. math

    What is the volume of a box that can be created from a sheet of metal that measures 12 inches by 30 inches? Assume there is no top to the box.

  28. physics

    upon fully dissolving 2g of a metal in sulfuric acid6.8g of the metal sulphate is formed. The equivalent weight of the metal is

  29. Chemistry

    0.356 grams of an unknown metal reacts with oxygen to form 452 milligrams of the metal oxide. Identify the metal

  30. chem

    Two metals of equal mass, A and B, both at a temperature of 25 degrees celsius, are placed in separate but identical beakers of cold water. Metal A has a larger specific heat than metal B. Metal A is in Beaker 1, and metal B is in Beaker 2. Which beaker

  31. chemistry

    All of the lanthanide metals react with HCl to form compounds having the formula MCl2,MCl3,or MCl4 (where M represents the metallic element). Each metal forms a single compound. A chemist has .250g sample of a transition metal, and wishes to identify the

  32. Chemistry

    An unknown metal has a mass of 4.67g. It is heated to 95.1 C and then placed in a calorimeter that contains 24.3g of water at 21.7 C. The metal and water both reach a final temperature of 24.6 C. What is the specific heat of this metal? What is the unknown

  33. physics

    a pieces of metal of mass 3.6kg is suspended from a spring balance, what is the reading of spring balance in newton, with a metal in air, with the metal in water, the metal in prime and what is the density in which it gives a reading of 33newton

  34. CALCULUS

    A PIECE OF SHEET METAL IS 2.6 TIMES AS LONGS AS IT IS WIDE. IT IS TO BE MADE INTO A BOX WITH AN OPEN TOP BY CUTTING 3-INCH SQUARES FROM EACH CORNER AND FOLDING UP THE SIDES. IF THE VOLUME OF THE BOX MUST BE BETWEEN 600 AND 800 CUBIC INCHES, WHAT VALUES OF

  35. Chemistry

    Which of these is an application of electrolytic separation? obtaining metals from metal ores covering a corrosion-prone metal, like iron, with a thin layer of chromium running voltaic cells in reverse to charge them covering plastics with a thin layer of

  36. hdhs

    A box open at the top has its outer dimensions 10cm,9cm & 2.5cm and its thickness 0.5mm. Find the volume of the metal

  37. physics

    A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 11.2 cm and its length is 21 cm. The metal every where is 0.4 cm thick. Calculate the volume of the metal correct to 1 place of decimal

  38. calculus

    A box is contructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $5 per square foot and the metal for the sides costs $2 per square foot. Find the dimensions that minimize cost if the box has a volume

  39. calculus

    A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $2/ft2. The metal for the four rectangular sides costs $3/ft2. Find the dimensions that minimize cost if the box has a volume 20 ft3.

  40. calculus

    A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $4 per square foot and the metal for the sides costs $4 per square foot. Find the dimensions that minimize cost if the box has a volume

  41. 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

  42. Calculus

    Gloria would like to construct a box with volume of exactly 45ft3 using only metal and wood. The metal costs $14/ft2 and the wood costs $5/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

  43. chemistry

    1) Arrange the metal-metal ion reactions (aluminum, copper, nickel), M^n+ + ne^- --> M^0, in a column, in order of decreasing ability as oxidizing agents... What I put was : Al^+3 + 3e^- --->Al Ni^+2 + 2e^- --->Ni Cu^+2 + 2e^- --->Cu 2) Also, explain your

  44. Algebra

    A box is to be formed from a rectangular piece of sheet metal by cutting squares measuring 5 inches on a side and then folding the sides. The piece of sheet metal is twice as long as it is wide. If the volume of the box is to be 1760 in^3, what are the

  45. calculus

    A car[enter will be building a stained glass jewelry box. The frame of the box is to be built from a 48 inch stripe of metal which will be cut into 12 pieces. The 12 pieces are then soldered to form a rectangular box whose base is twice as long as it is

  46. calculus

    A cylindrical metal can with an open top is to be constructed. the can must have a capacity of 24pie cubic inches. the metal used to contruct the bottom of the can costs 3 times as much as the metal in the rest of the can. Find the dimensions(radius and

  47. Chemistry

    The specific heat of a metal was found to be 0.38 J/g*°C. When 0.5007 g of this metal was heated in a stream of chlorine gas, it produced 1.0586 g of a metal chloride, MClx. a. Determine the formula of the metal chloride and the accurate atomic weight of

  48. chemistry

    Suppose that you wanted to be sure that a metal ion, any metal ion, would dissolve in water. What salt of the metal ion compound would you choose? 1. the hydroxide (OH−) salt of the metal ion 2. the carbonate (CO2− 3 ) salt of the metal ion 3. the

  49. AP CHEMISTRY

    an unknown metal reacts with chlorine to produce 6.84 g of metal chloride. when metal chloride dissolves in 100 mL of solvent the metal ion concentration is 0.43 M. What is the unknown metal?

  50. Chemistry

    What kind of metal is Bi? (metal, nonmetal, metalloid, transition metal, or lanthanide metal)

  51. Chemistry

    I need help classifying these as physical and chemical properties! 1. sodium metal in chlorine gas releases luster. 2. sodium metal has a metallic silver luster. 3. sodium metal in water porduces hydrogen gas. 4. sodium metal melts to a liquid at 98

  52. Chemistry

    This has to do with the reactivity series for metals (K,Na,Ca,Mg,Al,Zn,Fe,Pb,Cu,Au,Ag) Which metal is most likely to undergo the conversion M(s)->M(n+)(aq)+ne- What type of reaction is this?-oxidation ? Which metal ion is most likely to undergo the

  53. Chemistry

    In an experiment 1.015 g of a metal carbonate, containing an unknown metal M, is heated to give the metal oxide and 0.361 g CO2. MCO3(s) + heat MO(s) + CO2(g) What is the identity of the metal M?

  54. math

    a metal cutter was accurate to the nearest micron.about how many pieces of metal 0.8188 centimeters long could the metal cutter cut from a 32.253 length of metal?

  55. physics

    a metal crate with a mass of 500 kg is pushed across a metal floor for 5 minutes.50N is applied horizontally.box does not move, extra 50 N is applied.after 2 minutes then box moves 4meters,how much work is done

  56. Chemistry

    How do i list the numbers and types of atoms represented by chemical formulas. Example Fe2O3 The subscipts tell you the number of atoms. For example, in Fe2O3 there are two atoms of Fe and three atoms of O. I don't understand the part about types. Please

  57. Chemistry

    Based on the following observations for 3 unidentified metals (Z, X, and D) and solutions of their metal cations (Zn+ and En+), rank the metals in terms of reducing agent strength, from lowest to highest. -When metal X is placed in an aqueous solution of

  58. Chemistry

    Suppose that you wanted to be sure that a metal ion, any metal ion, would dissolve in water. What salt of themetal ion compound would you choose? 1. the carbonate (CO2−3 ) salt of the metal ion 2. the hydroxide (OH−) salt of the metal ion 3. the

  59. general physics

    A piece of metal, when weighed in air, has a weight of 20.7 N. When completely submerged in blood (ĉ = 1060 kg/m3), the metal has a weight of 12.7 N. Based on the values from table 11.1 in the text, what is the most likely metal? Here is the answer but

  60. chem

    A 0.069 gram sample of a metal reacted with HCl and produced 45.31 mL of H 2 gas at 25¡ÆC and 1 atm pressure. The metal is known to react with HCl according to the following reaction, 2 M + 6 HCl > 2 MCl 3 + 3 H 2 What is the molar mass of the metal?

  61. Calculus

    A craftsman wants to make a cylindrical jewelry box that has volume, V, equal to 60 cubic inches. He will make the base and side of the box out of a metal that costs 50 cents per square inch. The lid of the box will be made from a metal with a more ornate

  62. Chemistry

    HELP!!! An unknown metal having a mass of 14.00g is dropped into 11.00mL of water at 20.0 degrees Celcius. The starting temperature of the chunk of metal is 100.0C. The final temperature of the water and metal is 32.5C. What is the specific heat of the

  63. Physics

    A cubical metal box has side L=10.34cm and mass m=150 g. How much mass must be placed inside the box if it is to float in water with its top at the surface?

  64. Chemistry 106

    An unidentified metal forms an ionic compound with the carbonate anion. The metal forms a 2+ cation. If the minimum ration of the number of protons in the metal to the oxygen protons s 5:6, what is the metal?

  65. math

    setup an equation or expression to model the situation below: what is the volume of a box that can be created from a sheet of metal that measures 12 inches by 30 inches? assumer there is no top to the box.

  66. Chemistry

    The specific heat of copper metal was determined by putting a piece of the metal weighing 33.6 g in hot water. The quantity of heat absorbed by the metal was calculated to be 47 J from the temperature drop of the water. What was the specific heat of the

  67. Chemistry

    The specific heat of copper metal was determined by putting a piece of the metal weighing 39.4 g in hot water. The quantity of heat absorbed by the metal was calculated to be 47 J from the temperature drop of the water. What was the specific heat of the

  68. Science

    The specific heat of copper metal was determined by putting a piece of the metal weighing 33.6 g in hot water. The quantity of heat absorbed by the metal was calculated to be 47 J from the temperature drop of the water. What was the specific heat of the

  69. Chemistry

    The specific heat of copper metal was determined by putting a piece of the metal weighing 33.6 g in hot water. The quantity of heat absorbed by the metal was calculated to be 47 J from the temperature drop of the water. What was the specific heat of the

  70. Science

    A block of metal is on a table. what must be true for thermal energy to flow from the table to the metal? a. both the table and the metal must be cooler than the surrounding air. b. the metal must be cooler than the table c. the table and the metal must be

  71. Maths

    A hollow spherical metal ball has internal radius 1cm. If the metal is 1/2 cm thick, find the volume of metal ( Take pi equals 22/7)

  72. physics

    A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 7.07 mm, and is frictionless.

  73. physics

    A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 7.07 mm, and is frictionless.

  74. Physics

    A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 6.22 mm, and is frictionless.

  75. physics

    A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 7.07 mm, and is frictionless.

  76. chem/science

    Please predict what will happen. Im not very good in chem. Iron metal and pb(NO3) Lead metal and Mg(9NO3)2 Copper metal and AL(NO3)3 Lead metal and AgNO3

  77. Chemistry

    a cube of metal has a mass of 1.45 kg. when the metal is placed into a graduated cylinder containing 356mL of water, the volume increases to 898 mL. calculate the density of the metal in g/mL

  78. chemistry

    what would happen if you used a very small amount of metal in measuring density? how would it affect your measurement? consider the number of segnificant digit in your ansuer if you use more than 1.00 ml of metal or less than 1.00 ml of metal.

  79. science

    a 150g of a metal at 80degree C is placed in 100cm3 of pure water at 20degree C. the final temperature of the system (metal+water) is 23degree C. what is the specific heat of the metal? i got the ans -0.16 by using formula mCdelta T(water)=mCdeltaT(metal)

  80. math

    carlos makes geometrical artworks out of sheet metal. the dimensions of a full size sculpture will be 6 times the dimensions of the model shown below. He will not use any metal for the bottom base of the cylinder. How many square feet of sheet metal will

  81. chemistry

    A 37.0 g mass of a metal was heated to 100°C and then plunged into 74 g of water at 24.0°C. The temperature of the resulting mixture became 28.0°C. (a) How many joules did the water absorb? (b) How many joules did the metal lose? (c) What is the heat

  82. Math

    A machine produces open boxes using rectangular sheets of metal (12in by 20in). The machine cuts equal-sized squares from each corner, and then shapes the metal into an open box by turning up the sides. Express the volume of the box V(x) in cubic inches as

  83. Physics

    Metal expands more than glass when both are heated. How can this fact be used to help open a metal screw top on a glass bottle which appears to be stuck?

  84. Chemistry

    When light of a wavelength of 125 nm strikes a certain metal, electrons having a velocity of 8.2 x 10^5 m/s are emitted from the surface of the metal. What is the threshold frequency of the metal? The answer is 1.9 x 10^15 s^-1 I'm not sure how to do this.

  85. Math

    Three large barrels are transported on a railroad car by stacking the third one on top of the other two and using a tight metal band around all three to hold them together. If the outside diameter of each barrel is 3 feet, then what is the length of the

  86. calculus

    Find the dimensions of the largest rectangular box with a square base and open top that can be made from 300cm^2 of metal.

  87. chemistry

    Data collected from the calorimetry of a metal mass of the metal = 110.62g initial temperature of the water in the cup = 23.0 C initial temperature of the metal in the boiling water = 99.02 C final temperature of the metal AND water in the cup=25.54C

  88. Chemistry

    A 108g piece of unknown metal is heated to 100 degrees C in boiling water. The heated sample of metal is then dropped into 50ml of H20, which is initially at 23.0 degrees C. After a few minutes the temp. of water raises to 37.5 degrees C. What is the

  89. Chemistry

    A 10.00 g strip of zinc metal is placed in 100. mL of 0.250 M silver nitrate solution. When the reaction that occurs finally ceases, what will be the mass of unreacted zinc metal in the strip? What will be the mass of silver metal that “plates out” of

  90. Chemistry

    A sample of unknown metal has a mass of 36.7 g. This metal was placed in boiling water at 96.0oC until the metal had reached the temperature of the water. The metal was then placed in a foam cup with 50.0 g of water in it at 20.0oC. The cup absorbs 42.0

  91. physics

    A metal ball of mass 1.8 kg with initial temperature of 46.5 C is dropped into a container of 3 kg of water at 15 C. If the final temperature is 22.6 C, what is the specific heat of the metal? metal = ____ J/kg*C?

  92. chem

    A metal oxide reacts with water to produce a metal hydroxide. What additional information would you need to determine the percent yield of metal hydroxide from this reaction?

  93. Physics

    Two pieces of metal (A and B) are identical in every way, except that A has a much larger thermal expansion coefficient. If equal amounts of heat are added to both pieces of metal, which metal does more work on its surroundings?

  94. chemistry

    A rectangular metal bar has a volume of 50.0 inches cubed.The Metal BaR weighs 1.42kg. Calculate the density of the metal in grams per cubic centimeter.

  95. algebra

    Amy's project in metal shop class is to make a box (with no lid). Her shop teacher gave her a piece of metal that is 28 cm long and 20 cm wide. The assignment is to form the box by cutting squares out of each corner and bending the sides as shown below.

  96. Physics

    Why metal is a good THERMAL conductor but plastic is a worse conductor than metal? Is it also due to the delocalised electrons of the metal?plz explain it.

  97. math

    open top rectangular box made from 35 x 35 inch piece of sheet metal by cutting out equal size squares from the corners and folding up the sides. what size squares should be removed to produce box with maximum volume.

  98. physics

    A spiral spring work with a piece of metal extent by 10.5 in arise when the metal is fully submerged in water,the spring extended by 6.8cm cal. the R.O of the metal (assumed hook's law is obeyed).

  99. Chemistry

    A 19.5-g sample of a metal was heated to 61.67°C. When the metal was placed into 27.1 g of water in a calorimeter, the temperature of the water increased from 25.00°C to 30.00°C. What is the specific heat of the metal?

  100. science

    A piece of metal has its temperature raised from 25.0 o C to 55.0 o C. The metal has a mass of 12.5 g. If 338 J of heat is absorbed, what is the specific heat of the metal?

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