Q: Tropical rainforests covers 2% of the earth’s land surface. If there are 197,000,000square meter of…
A: As per the concept of percentage applicable to this problem, we can have, Total square kilometers of…
Q: The half-life of Carbon-14 is 7 years. How much of an initial 168 g sample will remain after 30…
A:
Q: The surface area of Antarctica is 13.2 million square kilometers. If 1 acre is equivalent to 4047 m,…
A: 4047 m2 = 1 acre 4047 ×10-6 km2 = 1 acre So, 1 km2 = (106/4047) acres = 247.1 acres
Q: The half-life of carbon-14 is 5730 years. If 6.25% of the original sample remains, how old is the…
A:
Q: How long will it take to drive 2,185 km at 95 km per hour, if you take a one-hour break after every…
A: Total time taken if don't takeany rest = distance /speed = (2185 km) /(95 km/hr) = 23 hr
Q: Earth presently has 1.4 billion hectares of arable land, and each hectare produces between 1 and 2…
A: It is given that each hectare of land is producing grain between 1 and 2 tons, its average 1.5 tons…
Q: A solid piece of lead has a mass of 29.89 g and a volume of 2.67 cm³. From these data, calculate the…
A: Given data: Mass of solid piece (m) = 29.89 g Volume (v) = 2.67 cm3 Need to determine the density of…
Q: An ocean dwelling dinosaur has an estimated body volume of 1.38 x 10^6 cm^3 and a mass of 1.24 x…
A: Given data The estimated volume of the dinosaur body is given as V = 1.38 x 106 cm3. The mass is…
Q: If the density of a diamond is 3. 5 g/cm³ , what would be the mass of a diamond whose volume is 0. 5…
A:
Q: You have a man 100kg and a gorilla 150kg, if the man can lift 90kg, what can the gorilla lift?…
A: If scaling is to be performed, as mentioned in the question, notice that man can lift weight which…
Q: A log-log graph of the area of glaciers and their volume is shown in the figure below. The…
A:
Q: If the length of a wire is 6.15 m, the diameter is 0.29 m, and the volumetric density is 0.042…
A: Given data, Length of wire, L = 6.15 m Diameter, D = 0.29 m Volumetric density, ρ =0.042…
Q: Since 1 cm = 1 mL, then how many cm' are in a liter? %3D
A: Given: 1 cm3 = 1 mL
Q: A population grows exponentially at about 2% per year. Assume that the population starts with 15…
A: We know that you have given that A population grows exponentially at about 2% per year. and the…
Q: 1 long ton = _kg 1 metric ton =. _k 1 short ton =. _kg 1000 lbs =_kN
A: Given: 1 long ton1 metric ton1 short ton1000 lbs
Q: Zirconium has an HCP crystal structure and density of 6.51 g/cm³, what is the volume of its unit…
A: Given, Zirconim has an HCP crystal structure and density of ρ = 6.51 gcm3
Q: A solid piece of lead has a mass of 23.94 g and a volume of 2.10 cm3. From these data, calculate the…
A:
Q: A snail crawls 30 inches in 5 minutes what’s the snails speed ?
A: Here, 30 inches=30in.×0.0254m1 in.=0.762m And, 5 min=5min×60s1 min=300s
Q: The population sizes of many animal species rise and fall over time. Suppose that the population…
A: The population size can be represented as, p(t)=3350+1250sin1.5t
Q: what is the purpose of the ratchet mechanism on a micrometer caliper?
A: Human hands are not that capable of very accurate readings, so employing the use of the ratchet…
Q: what is the density of a piece of quartz with a mass of 30g and a volume of 6cm^3
A: The volume of the quartz piece is, V=6 cm310-6 m31 cm3=6×10-6 m3
Q: If a 3.5-ounce portion of spinach costs $0.25, how much would a 5-lb box cost?
A: Given: The cost of 3.5 ounce spinach is 0.25$. Mass of the box is 5 lb. Concept: There are 16 ounces…
Q: The length (in centimeters) of a typical Pacific halibut t yr old is given approximately by the…
A: Let t be the time, then length of a typical Pacific halibut is given as,
Q: You have a different rock with a volume of 30cm' and a mass of 60g. What is its density
A: Given data: mass = 60g = 0.06 kg Volume ,= 30cm³.= 3× 10^-⁵ m³ Concept/formula used :…
Q: One nanometer is equal to: A. 10-6 m B. 10-8 m C. 10-9 m D. 10-5 m
A:
Q: How many microstates are created when 4 particles are distributed into 2 boxes?
A: Given data : Number of particles (N) = 4 Number of boxes = 2 Formula : Here, number of…
Q: Based on the text, explain why in the year 1,600, extinction of flora and fauna is only 50 species…
A: Solution: The earth has certain limits in terms of the amount of life it can support. This life…
Q: A fire burns an area approximately 200 feet wide and 800 feet long. How many acres burned? а.) 3…
A: Given that:- Dimensions of field =800ft×200ft
Q: An average eardrum has an area of about 5.0x10-5m2. What is the force in Newton's exered on an…
A: Area 'A' = 5 x 10-5 m2 depth under the water 'h' = 2.39 m g = 9.8 m / s2
Q: Suppose you have four cubic meters of copper, two cubic meters of uranium, three cubic meters of…
A:
Q: How many possible microstates are there for 6 molecules to fit in 6 boxes, when 4 molecules are…
A:
Q: A radioactive isotope has a half-life of 1.2 billion years. As measured by the presence of the…
A:
Q: One nanometer is: A) 10-11 m B) 10-10 m C) 10-8 m D) 10-9 m
A: Nanometer is a unit of length in the metric system. A nanometer is one billionth of a meter.
Q: What is the main reason scientists often work in teams?
A: For scientist working in classified areas, collaboration with university programs and researchers…
Q: A 5 cubic meter container is filled with 840kg of granite[density is 2400 kg per cubic meter] and…
A:
Q: A particular material has a density of 4.93 g/mL. What is the mass of 0.827 mL of this material?
A:
Q: When equal masses of two substances are mixed, the resultant density is 2.5 g/cm^3. When equal…
A: We know, Density=MassVolume ρ=mV When equal masses of two substances are mixed, m1=m2=m Resultant…
Q: What is the density of a rock of mass 1kg and a volume of 5 cubic centimeters?. show units used.
A:
Q: A rock sample contains a radioactive isotope that has a half-life of 10,000 years. One-fourth (25%)…
A:
Q: What is the volume of a piece of iron (D=7.9 g/cm^3) that has a mass of .50kg?
A: Given data: The density of the iron piece is D=7.9 g/cm^3 The mass is 500 g The volume is the…
Q: Lead has a density of 11.3 g/cm^3. What is the volume in cubic centimeters of 1 kg of lead
A: Write the expression for volume
Q: If á 1 = 6î – 3ĵ + 8k and d 2 = 10? – 4ĝ + 1k, then what is 107 – 4 + 1R, then what is ( d1+ d 2) ·…
A:
Q: If a mineral sample has a mass of 25.6 grams and a density of 5 g/cm, what would be the volume of…
A: "Since, you have asked multiple questions, we can solve only first question for you according to our…
Q: The half-life of carbon-14 is 5,730 years. Suppose a fossil is found with 30 percent as much of its…
A: The number of remaining atoms is calculated by using the formula N=N0e-λt , where N0 is the initial…
Q: A solid piece of lead has a mass of 29.89 g and a volume of 2.67 cm3. From these data, calculate the…
A:
Q: A thin sheet of gold foil has an area of 3.05 cm and a mass of 6.3 mg. How thick is: the foil? The…
A: Given: The mass of the sheet is 6.3 mg. The area of the sheet is 3.05 cm2. The mass density of the…
The volume of all the people on earth in cubic kilometers. If a large mine is about 3 km across and 1 km deep, would they all fit?
Step by step
Solved in 3 steps
- Since 1 cubic cm= 1mL, then how many cubic cm are there in a liter?Paperweight I bought a pack of 100 rectangular index cards. Each card measured 15 by 10 cm. The pack said :Paper Density = 200 GSM (grams per square meter). This means that a square meter of those cards weighs 200 g. A) All of the cards in the pack are place flat on a table without overlap. In square meters, what is the total area of the table covered by the cards? B) Each pack of cards is wrapped in a sheet of 50 GSM paper with an area of 800cm squared. I have a number of packs and wish to store them on a shelf that cannot hold more than 10 kg. What is the largest whole number of wrapped packs that can be stored? C) The total weight of 500 identical sheets of paper is 2.4kg. If each sheet measures 30cm by 20cm, what is its paper density in GSM? D) A business card measures 55mm by 90mm. Its paper density is 300 GSM. Fins its exact weight in grams.The stone used to construct the Great Pyramid of Giza has an average density of 160 pounds per cubic foot. The pyramid has a square base 756 feet on a side and a height of 455 feet. What is the mass in millions of tons, rounded to the nearest tenth of a million?
- The volume of Earth is on the order of 1021 m3. (a) What is this in cubic kilometers (km3)? (b) What is it in cubic miles (mi3)? (c) What is it in cubic centimeters (cm3)?A partly-full paint can has 0.526 U.S. gallons of paint left in it. (a) What is the volume of the paint, in cubic meters? (b) If all the remaining paint is used to coat a wall evenly (wall area = 12.5 m2), how thick is the layer of wet paint? Give your answer in meters.Water evaporates from a swimming pool at an approximately constant rate of 35 gallons of water for a pool with a surface area of 100 square feet to 70 gallons for a pool with a surface area of 400 square feet. (a) What is the evaporation rate per square foot of surface area (in gal/ft2)? Round to the nearest hundredth. gal/ft2 (b) How many gallons of water will evaporate from a pool of 200 square feet? Round to the nearest gallon. gal
- DEA agents watch drug smugglers load cocaine onto a fishing boat in a Mexican river to transport it down the river to the ocean, and then to Miami. To estimate how much cocaine was loaded, they measure how much further the boat sinks into the water after being loaded. If the boat’s area at the waterline is 50 m2 and it sinks by 2 cm, how much cocaine was loaded?Dea agents watch drug smugglers load cocaine onto a fishing boat in a Mexican river to transport it down the river to the ocean, and then to Miami. To estimate how much cocaine was loaded, they measure how much further the boat sinks into the water after being loaded. If the boats area at the waterline is 50 m2 and it sinks by 2cm, how much cocaine was loaded?Explorers in the jungle find an ancient monument in the shape of a large isosceles triangle as shown in the figure below. The monument is made from tens of thousands of small stone blocks of density3 633kg/m3. The monument is16.7m high and68.5m wide at its base and is everywhere3.70m thick from front to back. Before the monument was built many years ago, all the stone blocks lay on the ground. How much work did laborers do on the blocks to put them in position while building the entire monument?Note: The gravitational potential energy of an object-Earth system is given byUg=MgyCM, whereMis the total mass of the object andyCMis the elevation of its center of mass above the chosen reference level.J
- A paint can has 0.776 U.S. gallons of paint. If this paint is used to coat a wall evenly (wall area = 15.3 m^2), how thick is the layer of wet paint? Give your answer in millimeters. Assume that the dry paint has the same volume as the wet paint.A building contractor is building a backyard playground and wishes to put down rubber mulch to provide safety from falls. The contractor wishes to put the mulch in a pit in the shape of a rectangular solid 23 feet long, 16 feet wide, and 9 inches deep. a) Determine the volume, in cubic feet, of mulch the contractor will need. When appropriate, use the a key on your calculator. b) If mulch costs $9 per cubic foot, what will the cost of mulch be? a) The volume is ft3. (Type an integer or decimal.)A building contractor is building a backyard playground and wishes to put down rubber mulch to provide safety from falls. The contractor wishes to put the mulch in a pit in the shape of a rectangular solid 26 feet long, 12 feet wide, and 6 inches deep. a) Determine the volume, in cubic feet, of mulch the contractor will need. When appropriate, use the a key on your calculator. b) If mulch costs $10 per cubic foot, what will the cost of mulch be?