Refer to Multiple-Concept Example 11 to see a problem similar to this one. What is the smallest number of whole logs (p=725 kg/m³, radius= 0.0974 m, length-3.50 m) that can be used to build a raft that will carry four people, each of whom has a mass of 75.0 kg? Number Units
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Q: Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin…
A: Density , ρ = 19.32 g/cm3 = 19.32 x 103 kg/m3 Mass , m = 6.609 gm = 6.609 x 10-3 kg Thickness , t =…
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Q: What is the smallest number of whole logs (density = 745 kg/m3, radius = 0.078 m, length = 2.76 m)…
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- What is the approximate mass of air in a living room 4.3 m x 3.4 m x 2.8 m? The density of air is 1.29 kg/m³. Express your answer to two significant figures and include the appropriate units. HẢ ? Value Units тPlease help. This problem involves finding the radius and volume of a platinum atom using its density. Thank you.(a) A rectangular gasoline tank can hold 43.0 kg of gasoline when full. What is the depth of the tank (in m) if it is 0.500 m wide by 0.900 m long? (b) What is the volume of the tank (in gal)? (It is suitable for a passenger car.
- the average density of an atom is approximately 103 kg/m3. The nucleus of an atom has a radius about 10-5 times that of the entire atom, and contains nearly all the mass of the atom. What is the approximate density, in kilograms per cubic meter, of a nucleus?Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. (a) If a sample of gold with a mass of 4.041 g, is pressed into a leaf of 1.423 μm thickness, what is the area of the leaf? (b) If, instead, the gold is drawn out into a cylindrical fiber of radius 2.900 μm, what is the length of the fiber?A group of students wish to determine, experimentally, the bulk density of an unknown material. To determine this amount, the students measured the diameter, height, and mass of various cylinders. These values appear in the table below. Determine: a) The volume of the cylinders that appears in the following table. b) The graph of mass vs. volume.
- The mass of fuel in an airplane must be determined before takeoff. A jet contains 11281 LL of fuel after it has been filled with fuel. What is the mass of the fuel in kilograms if the fuel’s density is 0.767 g/cm3?The Statue of Liberty in New York City is approximately 305 ft305 ft tall. How many U.S. dimes would be in a stack of the same height? Each dime is 1.35 mm1.35 mm thick. number of dimes: Each dime has a mass of 2.268 g.2.268 g. How much would the stack of dimes from the previous question weigh? mass: g What is the value, in dollars, of the same stack of dimes? value: dollars The 2017 U.S. gross domestic product (GDP) was valued at 19,390,604,000 dollars.19,390,604,000 dollars. How many Statue of Liberty‑height stacks of dimes are needed to match the GDP in value? number of stacks:Hi please help: An 88kg person stands on a uniform 5.6kg ladder that is 4.0m long. The floor is rough, hence, it exerts both a normal force, f1, and a frictional force, f2, on the ladder. The wall, on the other hand, is frictionless, it exerts only a normal force, f3. Using the dimensions given, find the magnitude of f1, f2, and f3. Express answer using two significant figures and as kN as units.
- Possibly useful for this problem: 1 gal = 3.785 L; 1 in = 2.54 cm, 1 L = 1000 cm. A storm dumps 1.0 cm of rain on a city 6.0 km wide and 8.0 km long in a 2 hour period. How many gallons of water fell on the city? %3DGold, which has a density of 19.32 g/cm³, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. (a) If a sample of gold, with a mass of 49.73 g, is pressed into a leaf of 4.500 µm thickness, what is the area of the leaf? m2 (b) If, instead, the gold is drawn out into a cylindrical fiber of radius 1.500 µm, what is the length of the fiber? kmWhat mass of fresh water (in kg) can be contained in a box whose dimensions are 270 mm by 257 mm by 468 mm? (Density of fresh water = 1000 kg/m^3)