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A: Given, Volume =2 L the density of air is 1.29 kg/m^3 Density=Mass/volume Mass=Density x Mass
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A: b. x =515 kmx=515 km×104 dm1 kmx=515×104 dm x=515 kmx=515 km×105 cm1 kmx=515×105 cm
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A: Convert 1 carat into grams. 1 carat=3.168 grains=3.168115.4 grams=205.71×10-3 grams
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- CASE STUDY On planet Betatron, mass is measured in bloobits and length in bots. You are the Earth representative on the interplanetary commission for unit conversions and find that 1 kg = 0.23 bloobits and 1 m = 1.41 bots. Express the density of a raisin (2 103 kg/m3) in Betatron units.In 2011, artist Hans-Peter Feldmann covered the walls of a gallery at the New York Guggenheim Museum with 100,000 one-dollar bills (Fig. P1.48). Approximately how much would it cost you to wallpaper your room in one-dollar bills, assuming the bills do not overlap? Consider the cost of the bills alone, not other supplies or labor costs. FIGURE P1.48Calculate the mass (in SI units) of a 140 lblb human being. Express your answer with the appropriate units.
- A series of five measurements of the mass of a cylinder is made. The results of those measurements are 20.5 g, 20.6 g, 20.4 g, 20.4 g, and 20.5 g. Calculate the mean. Apply the rules of significant figures. O 20.50 g O 20.4 g O 20.48 g O 20.5 gThe 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:The density of the Earth can be expressed by the equation density = C{1.22 -(r/R)}, where R is the radius of the Earth and C is a constant. Find the expression for C in terms of total mass (M) and the radius (R)..
- One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in room temperature. Using those numbers, answer the following questions: a) What is the mass of a single gold atom in kg? b) Assume that gold atoms sit in a perfect cubic crystal structure. Estimate the distance between two gold atoms in meters. c) If we have a gold cube of 6 cm on each side, how many atoms can we fit along the edge of each side of the cube? d) What would be the mass, in kilograms, of the gold cube we discussed in part (c) (measuring 6 cm on each side)?The density of aluminum is 2.7g/cm3. An aluminum plate of uniform thickness is 10 cm length, 20cm wide and weigh 0.270kg. How thickness is the aluminum plate? Express you answer in exponential notation with the proper number of significant digits.A cube of material has sides 1 unit, and variable density which is given by p(x, Y, z) = 3 + 4xy – z, where all of x, y, z are between 0 and 1. Evaluate the mass of the cube; give your answer as a decimal to 1 d.p. Answer:
- The density of bubble gum is about 1g/cm3. You blow an 8g wad of gum into a bubble 9cm in diameter. What is the thickness of the bubble? Use the equation: 4πr2 to help solve the problem.One cm3 of gold is 19.32 g. What is the density (ratio of mass to volume) of gold inkg per m3 ? I know the answer is 19.32x10^3 but can someone tell me the steps to get there?A 4.2 cm diameter cylinder has a length of 13.5 cm. What is the cylinder's volume in SI units?