A wire is made of a material of density 10g cm3
A wire is made of a material of density 10g cm3. In Imperial or US customary measurement system, the density is equal to 654. The volume units milliliter (mL) and cubic centimeter (cm 3) are identical and are commonly used interchangeably. 05 g/cm 3 (7750 and 8050 kg/m 3 or 0. . 54g/cm3. Based on these experimental measurements, what is Young's modulus for this alloy of titanium? Oct 9, 2023 · m = mass. If the wire is to break under its own weight, the length of the wire made of that material should be (Take, g = 10 ms-2) A stress of 6 X 10 6 N m - 2 required for breaking a material. The value will be converted to all other units of the actual Composition of IRON. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1. 7–2. If the wire is to break under its own weight, the length (in metre) of the wire made of that material should be (take g = 10 m s − 2) The density ρ of the material is 3 X 103 kg m-3. It is a measure of how much "stuff" an object has in a unit volume (cubic meter or cubic centimeter). 291 lb/in 3 ). 3 g/cm3, silver is 10. Let's calculate the atomic radius of polonium, which has molar mass = 209 g/mol, density = "9. (30. When a 8 kg mass is hung from it, the wire stretches an amount 1. You may also find the following Math calculators useful. 000000. 874g/cm3. e. 0975 pound, 2. Its density is 8. 90 × 1000 = 2. The second object has a volume of 10 cm3 and is made of a material of density 1 g/cm3. 5 g per cm 3. ) Copper has one conduction electron per atom. If both the balls have the same diameter and attain the same terminal velocity, the ratio of viscosity of water to that of the liquid is: The mass density of aluminum is 2. 0 mm carries a current of 2. 8693 pound per cubic foot [lb/ft³], or 6. Density (g/cm 3) =. 4–2. Suppose you have three objects of equal mass. 7 g/cm3. The density of a substance strongly depends on its atomic mass and also on the atomic number density. 10 g / cm 3 ? Mar 14, 2023 · In general it is not necessary to weigh exactly 1 cm 3 of a material in order to determine its density. Was this answer helpful? 0. 0 cm3, the density would be. The general meaning of density is the amount of anything per unit volume. 2 g c m − 3) is dropped in water while another metal ball B 2 (density 6. Density of Iron is 7. Finally, by rearranging the equation one final time, we can calculate the volume of an object if the mass and density are known: V = \frac {m} {\rho} V = ρm. 32 g/cm"^3, and exists in a simple cubic unit cell. 85g/cm3)and what mass of water must be taken to prepare 100cm3 of 15%solution of sulphuric acid (density=1. A 45. Choose "Find the Density" from the topic selector and click to see the result in our Physics A 51. Be sure to keep the ends square. 5 1. 70 mercury: D=13. Thus, a shot put, radius 4 cm having metal density of 10 g per cm 3, then the mass of the shot put is not 2 kg. 47 * 1022 electrons per cm”) and are usually either 14 gauge (diameter of 1. or gm/cubic cm or gm/ml provided only one density unit is used. Solution. 0 g/cm3, aluminum is 2. Volume is Density divided by Mass. Mean Excitation Energy (eV) =. There are exceptions however, such as water's density increasing between 0°C and 4°C. This is simple to use online converter of weights and measures. 97237 ×1024 kg, and its volume is 1. 74 g/cm3. 94 gram per cubic centimeter or 8 940 kilogram per cubic meter, i. If the mass M is hung at the free end of the wire, then the extension produced in the wire is: Aug 6, 2015 · An object has a mass of 10g and a volume of 5 cm3. Density can be expressed in any combination of mass and volume units; the most commonly seen units are grams per mL (g mL –1, g cm –3), or kilograms per liter. 2. Mar 27, 2024 · Discover the metal density chart, a comprehensive list of metal and alloy densities. Then the minimum length of wire which will break under its own welght when suspended vertically ist - 10 m/s) (m) 4 * 10 m b) 4 - 10 m (c) 400 m (d) 40 m Jun 11, 2022 · The density of glass can vary based on its composition and type. When a 112 kg mass is hung from it, the wire stretches an amount 1. Based on these experimental measurements, what is Young's modulus for this alloy of magnesium? Even the filter material made of PTFE could only resist temperature 260℃. It has an estimated density of 40. What is the drift speed of the electrons in the Mass = Density × Volume. 5 12. To avoid multiple neutron scattering, which would introduce error into the results, the sample thickness is chosen to be much smaller than the mean free path of neutrons in the material. 29 cm. A mole of titanium has a mass of 48 grams, and its density is 4. ρ = m V m = Mass V = Volume. (a) What length of wire is required? 3. 03 water: D=0. A hanging wire made of an alloy of titanium with diameter 0,38cm is initially 9m long. Explore now on MachineMfg. Then the length of wire made of material so that it breaks under its own weight is, (g = 10 m/s2) A wire of length L has a linear mass density μ and area of cross-section A and Young's modulus Y is suspended vertically from a rigid support. From which metal is the wire made? 5 days ago · The steel weight formula for a cylindrical steel rod/bar is: W = (π/4)⋅d2⋅l⋅ρ. This tells us how much mass there is per a specific unit of volume of the object. 06 cm is initially 2. Click on the add rows botton to add more entries. Nov 21, 2020 · Aluminium - Density - Al. Density/D (g/cm3) Material; gasoline: D=0. When a 63kg mass is hung from it, the wire stretches an amount 1. 00009. Material. Calculate (a) mean value of diameter (b) ab asked May 17, 2019 in Physics by JanvikaJain ( 84. 05 mm), or 10 gauge (2. 49 cm. The table lists the densities of some common materials at 20°C. Congratulations, you've calculated the mean density of the Earth! A wire of length l metre, made of a material of specific gravity 8 is floating horizontally on the surface of water. (A) If you have a 10 gauge wire that is carrying the maximum current of 20 A Physics. 68 k g ≠ 2 k g. 89 g / m 3 and its atomic mass is 63. A wire is made of a material of density 10 g / c m 2 and breaking stress 5 × 1 0 9 N / m 2 length of a wire will break under its own weight when suspended vertically The density of common metals such as iron is 7. V. Question: \begin{tabular}{|llll|} \hline Materials: & Density (g/cm3) & E (GPa) & Strength (MPa) \\ \hline Epoxy & 1. The resistivity of the material is measured to be 11 X 10-* Am, and the density is 7. m = ρ x V. Now cut out the segment along your penciled line. density of silver is equal to 10 490 kg/m³; at 15°C (59°F or 288. A 50. Although ceramic material could work well in a high-temperature environment, when the filter exceeds a certain length, it has the risk of breakage at the beginning of the system’s starting work. 9 g/cm3 since density is an extensive property 8. In other words, it reads 10 grams per cubic centimeter or alternatively 10 grams per milliliter. This quantity ρ ρ is known as the density, which is usually defined as the mass per unit volume: ρ = m V. Divide the mass of the Earth by its volume to get its density, 5,514 ×10-9 kg/km3, which is equal to 5. To convert density in g/cm 3 to kg/m 3, simply multiply by 1000. 9 g/cm3 into 10 equal parts. 5 m long. Copper weighs 8. 5 & 52. 0126 kilograms per meter. 59 mm) wires. or just. Find the weight of a solid cone whose base is of diameter 42 c m and vertical height 20 c m, supposing that the material of which it is made weights 5 grams per cubic centimetre. Step 2: Click the blue arrow to submit. 4. The breaking stress for a substance is 10 N/m2. If { is length then value of. If density of the material is 3×103 20 kg/s3 . 9 m long. What is the density of the metal? We know that the metal is manganese, iron, or nickel, and these have densities of 7. V = volume of mass considered, cm 3, kg/m 3, lb/in 3, etc. 620, 2. be much smaller than the mean free path of neutrons in About Copper. 9 g/cm3 since density is an intensive property 8. 93 g/cm3) or brass (8. 286. A force of 106 N /M 2 is required for breaking a material. Oct 4, 2023 · The weight-to-length ratio of copper and steel wires depends on their diameter and density. The resistivity of the material is measured to be 13 x 10-8 12 · m, and the density is 7. 514 g/cm3. Calculate the Mass, Density or Volume of an object. Our sintered metal filter could work up to 1000℃. The resistivity of the material is measured to be 12 x 10-8 ohm, and the density is 7. 10597 pounds [lbs] of Copper fit into 1 cubic foot. V = m / ρ. The calculator can use any two of the values to calculate the third. Q. 5 g/cm3. 90 g. With objects, the Density is mass per unit volume, Mass is the amount of matter and Volume is the quantity o. 96 g cm¯ 3; one kg weighs 2. Also, you can put two known values into any one of the given formulas to find the third. If `g = 10ms^(-2) the length of the wire that will break under The breaking stress of the material of a wire is 6 × 10 6 N m − 2 Then density ρ of the material is 3 × 10 3 k g m − 3. Calculate the volume occupied by one atoni. Accounting for unit conversions and steel density of 7850 kg/m3, the following approximate formula is used for TMT steel bars: W = d2⋅l/162. Pure water, for example, has a density of 0. COMPOSITION: Atomic number. What would be the mass, in grams, of a solid block that has a volume of 50 in3? (1 inch = 2. 2046 lb; 1 inch is 2. Question. For example, a 1-litre soda bottle filled with air would feel much lighter than the same bottle filled with water. Common Density Units A wire is made of a material of density 10g/cm2 and breaking stress 5 × 109 N/m2 length of a wire will break under its own weight when suspended vertically Q. So, to calculate the weight, you can use the formula: Weight (kg) = Length (meters) × 0. 85 g/cm3, 304 stainless steel is 8. 280 and 0. lf a copper wire of diameter 1. (a) What is the grain ra o for this wheel? (b) If theywant the wheel to provide a beter surface finish, shall they increase or decrease the binding materials? Jul 20, 2022 · Density = Mass Volume Density = Mass Volume. Fraction by weight. 0-g sample of a conducting material is all that is available. A mole of titanium has a mass of 48g, and its density is 4. 998 If a scientist has 10 grams of each material, which material has the greatest volume? The following table provides a comprehensive list of density values for different rocks at standard room temperature (approximately 20°C or 68°F) and 1 atmospheric (atm) pressure. Density is a measure of the amount of mass contained in a unit of volume. Density is defined as mass per unit volume. What is the density of this metal in g/cm3. If it is not wet by water, the maximum diameter of the wire (in millimetre) upto which it can continue to float is (surface tension of water bit T = 70 × 10 − 3 N m − 1) : May 7, 2018 · 1 Answer. density = 10 g/cm3. 5 \\ \hline Glass Fiber & 2. Density of Common Engineering Materials and Metals. The number of atoms in 100 g of an fcc crystal with density d = 10 g/cmº and cell edge equal to 16 100 Am is equal to f a/ 4x103 m C) 24103 lan b arm UNA ) 34103 d) 13 10273 Too mic a Open in App Solution A certain silvery metal had a density of 12. 83 g/cm3), copper (8. 7. 5 days ago · m m – Mass (or weight, if measured on Earth); and. is the amount A hanging wire made of an alloy of titanium with diameter 0. As a general guideline, a 1-meter length of 2. 5 g/cm3, borosilicate glass has a density of about 2. Physics questions and answers. 1 cm Now, volume of the sphere = 4/3 πr3 Jul 1, 2020 · To calculate density of an object, you need to know the mass and volume of the object. Density is given by. 93 g/cm3, gold is 19. The resistivity of the material is measured to be 10 10-8 ·m, and the density is 7. The most stable known isotope, 269Hs, has a half-life of approximately 9. Along with values, enter the known units of measure for each and this calculator will convert among units. 2 cm3 and a mass of 159 g. V V – Volume. Use this guide to find the right material for your project. Percentage by weight or parts by weight can also be used. pure WC has a density of 15. For example, if you had a metal cube with mass 7. 025 kilograms, while a 1-meter length of 2. 17cm is initially 8m long. 39cm is initially 5m long. To Find Density: ρ = M V. If an object were extremely dense, it would feel heavier than another object of the same size that was less dense. a. 87400E+00. If its internal and external radii are 8 cm and 9 cm respectively, find the weight of the shell. 558. What is the density of each small part? One-tenth of 8. 51 inches wide. Dec 14, 2017 · An electrician cuts a 10-meter-long copper wire having a density 8. 21 g/cm3 7. 625, 2. 0 cm. Density of Aluminium is 2. 628 and 2. The density of carbon steels, alloy steels, tool steels and stainless steels are given below in g/cm 3, kg/m 3 and lb/in 3. Mar 24, 2021 · The general meaning of density is the amount of anything per unit volume. 626 cm. 9 g/cm3) to makethe grinding wheels, the pores are limited to 1 cm3. Based on these experimental measurements, what is Young's modulus for this alloy of titanium? Oct 4, 2023 · The weight of copper wire depends on its length, diameter, and density. The density calculator finds density using the given mass and volume. 0 cm long on the 45 cm sheet you have and mark it off wit h a pencil. This is partly due to different rocks of the same type containing different proportions of minerals. 43cmcm is initially 9mm long. 26 kilograms. 10g/cm3)? View Solution Q 3 Physics questions and answers. We simply measure mass and volume and divide volume into mass: In general it is not necessary to weigh exactly 1 cm 3 of a material in order to determine its density. Mass = 2681. Find the greatest length of steel wire that can hang vertically without breaking. 0636 ounce per cubic inch [oz Engineering Materials Material Design & Reference Data, Heat Treating, Hardness Conversions, AISI Steel, Rapid Prototype. 8 cm. When a 97 kg mass is hung from it, the wire stretches an amount 1. 5mm copper wire weighs approximately 0. We see that there is 1 atom per unit cell (1/8 "atom" at each corner) and that the edge length of the cell (a) is twice the atomic radius (r The following table provides a comprehensive list of density values for pure metals at room temperature (approximately 25°C or 77°F) and 1 atmospheric (atm) pressure. 6 milk: D=1. When you cut a block of wood in half, you're essentially dividing its mass and volume by 2. 5 & 70 A metal ball B 1 (density 3. 58 g/cm3. Based on these experimental measurements, what is Young's modulus for this alloy of titanium? How many meters of 34-gauge wire (diameter = 6. 87 g/cm3, mild steel is 7. ρ = m V (2. 8. 304 x 10¯ 3 inches) can be produced from the copper that is in 5. 1) ρ = m V. 9. 54 cm and the volume of a cylinder is πr 2 h) Oct 24, 2023 · The density of the final composite is 12. The SI unit of density is kg/m 3. Generally, soda-lime glass has a density of approximately 2. Jan 22, 2020 · Sandstone. Jun 20, 2015 · To solve for density, simply follow the equation d = m/v. 50 mm. 14 , exact A metallic sphere with an internal cavity weighs 40 g weight in air and 20 g weight in water. If calculating the aluminum weight per square foot, must first measure the thickness of the aluminum sheet Jun 1, 2016 · Here's one way to do it. 89986004 gr/gal (grain / UK gallon) The density value 10 g/cm3 (gram / cubic centimeter) in words is "ten g/cm3 (gram / cubic centimeter)". The weight of aluminum per cubic inch is 0. Density is Mass divided by Volume. What is its density. 7 g/cm3 (0. 53 g/cm3). We see that there is 1 atom per unit cell (1/8 "atom" at each corner) and that the edge length of the cell (a) is twice the atomic radius (r Sep 11, 2020 · The answer to this question lies in understanding the concept of density, which is a property inherent to the material regardless of its mass or volume. Given, π = 3 . Slate. Typical electrical wires in your house are generally made of copper (electron density of 8. 9 g/cm3 since density is an A hanging wire made of an alloy of titanium with diameter 0. 0 A. Density (g/cm 3) State of Matter. Density is defined as the mass per volume. Based on this equation, it's clear that density can, and does, vary from element to element and substance to substance due to differences in the relationship of mass and volume. The units, used for measurements are, therefore, mass per unit volume. Assuming that half the pores are filled withsilver, calculate a) the volume fraction ofsilverin composite, b) the volume fraction of pores in the WC compact prior to infiltration, and c) the original densityof the WC compact before the infiltration. The principle of density was discovered by the Greek scientist The density of steel is in the range of 7. Oct 6, 2020 · A piece of metal wire has a volume of 20. 54g/cm3g/cm3. (1 atm = 101,325 Pa) Click on the icon to switch between SI (kg/m 3) and US customary/Imperial (lb/ft 3) units. 23cm. 2cm. A hanging wire made of an alloy of titanium with diameter 0. 5 ohm. 14 cm is initially 2. 77 g/cm^3(3 marks A wire is made of a material of density `10g//cm^(3)` and breaking stress `5xx10^(9)Nm^(-2)`. Where. 85g/cm3and what mass of water must be taken to prepare 100 cm 3 of 15 % solution of sulphuric acid density =1. If the density of the material with cavity be 8 g per c m 3 then the volume of cavity is: Density is the amount of matter in an object compared to its volume (the amount of space it takes up). Silver weighs 10. For example, a 100-meter length of 2. Simply select the input unit, enter the value and click "Convert" button. Water has a density of 1 kilogram per liter, while air has a May 27, 2020 · Densities of Common Substances. Hassium is a chemical element with symbol Hs and atomic number 108. 07 pounds and measuring 6. 4 cm is the standard width of commercial al u- minum foil. 6 g c m − 3. What length of the wire of this substance should be suspended vertically so that the wire breaks under its own weight? (Given : density of material of the wire = 4x10kg/m3 and g=10 m/s2). These values can vary based on specific wire types and conditions. You should have a sheet of foil that is 30. Feb 10, 2013 · A hanging wire made of an alloy of titanium with diameter 0. 63 mm), 12 gauge (diameter of 2. May 17, 2019 · The diameter of a wire as measured by screw gauge was found to be 2. If `g = 10ms^(-2) the length of the wire that will break under its own weight when suspended vertically is Feb 5, 2020 · A material's density is defined as its mass per unit volume. Mass = 10 × 4 3 × 22 7 × 4 3 = 2681. 7g/cm3. The density of copper is 8. 83 g/cm3. A wire is made of material of density 10,000 kop/m and brealding stress 4*10N/m\". 08 g/cm3. 630, 2. Below is a table of units in which density is commonly expressed, as well as the densities of some common materials. If it is not wetted by a liquid of surface tension 44 dyne/cm, then the maximum radius of the wire which can float on the surface of liquid is Jun 1, 2016 · Here's one way to do it. If we knew the total volume of the object, we Get an expert solution to Radius of a wire is 2. An object's density is represented by a ratio of its mass to volume. A mole of titanium has a mass of 48gg, and its density is 4. 49 g/cm3, for more metals, please view the metal density chart and table below. 54g/cm'. 49 gram per cubic centimeter or 10 490 kilogram per cubic meter, i. V = volume. We simply measure mass and volume and divide volume into mass: A metal M of atomic weight 60 gm / mol has a density of 10. Equation. (a) What length of wire is required??m(b) What must be the diameter of the wire??mm May 6, 2019 · Here's a table of densities of common substances, including several gases, liquids, and solids. hydrogen ( at STP) 0. Density is essentially a measurement of how tightly matter is crammed together. Apr 16, 2024 · What is the mass of the ball, if the density of the metal is 8. The number of decimal places for the calculated final alloy density can be specified (The default value is 5). Question: f we use WC 50g (density is 16 g/cm3) and 50g Co as binding materials (density is 8. 5 mm copper wire weighs approximately 0. > For a metal, you need the density, the molar mass, and the crystal structure. Density = _____ g/cm3 Physics questions and answers. 54 cm exactly) You are given a cube of metal weighing 21. 5 mm copper wire would weigh approximately 1. 9 g/cm3 since density is an intensive property One-tenth of 8. 7g/cm3, copper is 8. (1. What does ‘densest glass’ mean and how is it determined? The greatest length of the wire made of material of breaking stress 8 × 10 8 N / m 2 and density 8 × 10 3 k g m 3 that can be suspended from a rigid support without breaking is (g = 10 m / s 2) Q. 54g/cm! Based on these experimental measurements, what is Young's modulus for this alloy of titanium? Y = Babel A Incompatible units. This table cites density values from lowest density to highest. 0975 lb/in3), which is about 1/3 of that of steel (7. The material of a wire has a density of 1. 7 grams per cubic centimeter. It is usually measured in kilograms per metre cubed (kg/m 3) or grams per centimetre cubed (g/cm 3). A mole of magnesium has a mass of 24 grams, and its density is 1. m = mass given in grams g, kg, lbs, etc. 4 g / c m 3. When a 40kg mass is hung from it, the wire stretches an amount 1. 0126 kg/meter. Density is calculated by the formula p=m/v where p is density, m is mass, and v is volume. 2–2. We can then rearrange this equation to express the mass in terms of density and volume: m = \rho V m = ρV. 08321 ×1012 km3. Nov 21, 2020 · Iron - Density - Fe. 4g/cm3 ρ = 7 g 5 c m 3 = 1. 1) (2. 7 x 103 kg/m3. 0 g and volume 5. 54 g/mol. 8 940 kilograms [kg] of Copper fit into 1 cubic meter. The length of the wire is 50. 1) (1. Sep 11, 2020 · The answer to this question lies in understanding the concept of density, which is a property inherent to the material regardless of its mass or volume. 56. 9 g per cm3? To find mass, we have to find volume of sphere Radius of sphere = r = 𝐷𝑖𝑎𝑚𝑒𝑡𝑒𝑟/2 = 4. Based on these experimental measurements, what is Young's modulus for this alloy of titanium? Q. 87 g/cm3, and 8. This 3 days ago · You can arrive at this answer through these steps: The mass of the Earth is 5. ρ = 7g 5cm3 = 1. 0 g c m − 3) is dropped in a liquid of density 1. The density calculator is used to calculate the density of a material depending on its mass and volume. 5 . All the calculations by this tool can be performed using the given equations. Common & Less Common Metal Density Chart / Table A wire is made of a material of density `10g//cm^(3)` and breaking stress `5xx10^(9)Nm^(-2)`. A typical 2. When a 50kg mass is hung from it, the wire stretches an amount 1. 88 pounds of covellite, an ore of copper that is 66% copper by mass? (Hint: treat the wire as a cylinder. 0 cm If mass of wire was measured as 25 g, then find the density of wire in correct significant figures. The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). 15K) at standard atmospheric pressure . Enter the values of mass and volume below using which you want to calculate the density. 3k points) Density close density A measure of compactness and the ratio of mass to volume. Every cubic centimeter of the object has a mass of 10 grams. Reason: We know that, volume of a sphere is given as, 4 3 π r 3. What volume of 95 % sulphuric acid density=1. Verified by Toppr. 6 m long. 0g/cmº. What is the density p of the material of the third object if its volume is 15 cm3? A hanging wire made of an alloy of magnesium with diameter 0. 9 g/cm3. What we conventionally call the "density" is more precisely known as the "mass density". density of copper is equal to 8 940 kg/m³; at 20°C (68°F or 293. The statement is given as. 54 g/cm3. 90 g/cm3, respectively. 4 cm x 40. 86 g/cm". The density of Hassium results from its high atomic weight and Click here👆to get an answer to your question ️ 17 12. 26cm. 5mm steel wire weighs roughly 0. 15 cm is initially 2. 78cmcm. 701568. Density can be in any unit like lb/cubic inch. As you can see, rocks of the same type can have a range of densities. These problems show how to calculate density of a solid and liquid. The weight of a solid cone having diameter 14 cm and vertical height 51 cm is ____ if the material of solid cone weighs 10 grams per cubic cm. Sometimes, you have to convert units to get the correct units for density, such as mg to g or in3 to cm3. 0 g sample of a conducting material is all that is available. Thus, volume of sphere of What volume of 95% sulphuric acid (density=1. Mass is Density mutiplied by Volume. 2 g/cm3, and lead glass can have a density up to 5. 01 inches high, 3. Put another way, density is the ratio between mass and volume or mass per unit volume. ρ = m / V. 7 seconds. The first object has a volume of 5 cm3 and is made of a material of density 2 g/cm3. 2/2 = 2. Assertion is incorrect. The general trend is that most gases are less dense than liquids, which are in turn less dense than solids, but there are numerous exceptions. Granite, for example, can have a quartz content anywhere between 20% and 60%. 998 g/cm 3 at 25° C. ρ — Steel's density in kg/m 3. 33 inches long and 1. 75 and 8. 0491 kilograms. To Find Volume: The total cross-section for uranium dioxide of density 10g/cm 3 is to be measured by a transmission method. The total cross-section for uranium dioxide of density 10g/cm3 is to be measured by a transmission method. where: d — Rod's diameter in m; l — Rod's length in m; and. Shale. (A) 1x 10-23 cm (B) 2 x 10-23 cm3 (0) 3 x 10-23 cm3 (D) 4x 10-23 cm A hollow spherical shell is made of a metal of density 4. When a 42kgkg mass is hung from it, the wire stretches an amount 1. Carefully mark a length exactly 40. It is a synthetic element (first synthesised at Hasse in Germany) and radioactive. 2 & 3. Increases in temperature tend to decrease density since the volume will generally increase. uy jh ru qh za od kb xb el wv