When air pollution is high, ozone contents can reach 0.6 ppm. How many molecules of ozone are present per liter of polluted air if the barometric pressure is 755 mmHg and the temperature is 79 °F?

Q: Solar heating of a house is much more efficient if there is a way to store the thermal energy…

A: Here we have to find the mass of the slab. Considering that the slab is 12 m2 in size and 25 cm…

Q: Safflower oil has a density of 924 kg/m³. What is the mass of 655 mL of safflower oil? Enter the…

A:

Q: Firewood is a traditional biomass energy source. To heat a 1500 sq.ft. house in Canada we need about…

A: Energy density of firewood=4.5 kWh/kg But efficiency of it=60% So energy produced by 1kg of firewood…

Q: You have a cube of unknown metal alloy that measures 2 cm on a side. If the cube has a mass of 63.8…

A: The mass of a cube is, m=63.8 grams The side of a cube is, a=2 cm The volume of a cube is, V=a3=2…

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: If the solar insolation is 1,400 kWh/m² per year. And the efficiency of solar panel is 17%. How much…

A: We are given solar insolation. We are also given the efficiency of solar panel. We hence first find…

Q: You have a raft made out of 8 logs, each with a diameter of 30 centimeters, length of 2 meters, and…

A: The mass per unit volume of an object is defined as the density of the object, to solve the given…

Q: DEA agents watch drug smugglers load 10,000 N of cocaine onto a fishing boat to transport it from…

A: weight = 10000 N density of saltwater = 1025 kg/m3area of base of boat = 50m2

Q: covers an area of 5.01

A: 1 m = 100 cm

Q: A block of wood measuring 5cm x 3 cm x 10 cm has a mass of 90 grams. What is the density of the…

A: Given that,                    volume of block of mass(V)=5×3×10×10-6 m3…

Q: A particular variety of wood has a density of 0.40 grammes per cubic centimetre. What is the mass in…

A:

Q: what is the density of ideal gas in a room whose volume is 120 cubic meter at 100kpa and 25°c

A: Write the expression for the ideal gas equation and rearrange the equation to obtain the expression…

Q: The area of the 48 contagious states is 3.02 x 106mi2. Assume that these states are completely flat…

A: Area of the states = 3.02 x 106 mi 2 = 7.818 x 1012 m2 Height of rainfall = 2 inch = 0.0508 m

Q: A sample of water (2 Hydrogens and one oxygen in each molecule)  has a mass of 10.0 grams. What is…

A: Write the expression for number of molecules

Q: An ideal gas is at 50 kPa of pressure. The temperature is tripled and the volume of the container of…

A: For an Ideal gas, PV = nRT  Where, P= pressure, T= temperature, R = gas constant, n= no. Of moles…

Q: a) What is the volume (in km3) of Avogadro's number of sand grains if each grain is a cube and has…

A:

Q: DEA agents watch drug smugglers load cocaine onto a fishing boat in a Mexican river to transport it…

A:

Q: built a raft out of 8 logs, each with a diameter of 30 centimeters, length of 2 meters, and mass of…

A: Given:-  The number of the logs is N = 8.  Each have a diameter d = 30 cm  Length L = 2 meter  The…

Q: calculate how much radiation is emitted by the Sun and the Earth (assuming the Sun's average surface…

A:

Q: Tungsten has a density of 19,300 kg/m³. If you have a cube of tungsten that measures 5 cm on a side,…

A: Given that,A tungsten has a density : ρ=19,300 kg/m3If you have a cube of tungsten that measures on…

Q: A person consumes about 2600 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. What is this energy in…

A: Write a given values of this question. E=2600Cal1cal=4186J1kWh=860Cal

Q: What is the density of water, when a mass of 2kg water is gradually heated to give a temperature of…

A: The density of a substance is defined as the ratio of the mass of the object to the volume occupied…

Q: What is the volume of a 4.00 kg of pile of aluminum cans that are melted , then cooled into a solid…

A: The volume of an Aluminium can that is melted, then cooled into a solid cube is 4.00kg. We would use…

Q: The mass of the blood = 6% of the body mass. what are the volume of the blood of a 60 Kg man (Note:…

A: We need to calculate the volume of blood of a 60 kg man.

Q: A 60-kg man used to have an apple every day after dinner without losing or gaining any weight. He…

A: Consider the 200 ml of ice cream contain 220 Cal and for apple contain 70 Cal from the table of…

Q: The volume of an ideal gas changes as the gas undergoes an isobaric process starting from…

A:

Q: A square cube has sides with dimensions of 2.8 cm.  If the mass of the cube is 58 grams, what is the…

A:

Q: A pendulum swings through an angle of 12 degrees each second. If the pendulum is 14 cm in length and…

A: The angle through which the pendulum swings in each second, ϕ=12° The length of the pendulum, l=14cm…

Q: A body is found and the temperature is measured at 34.6 degrees Celsius, 30 minutes after the…

A: For such question newtons Law of cooling should be used.It states when a body cools from…

Q: A small exercise area for dogs is 27 meters long and 3.2 meters wide. What is the area of the dog…

A:

Q: 1.3 kg of air contains 3.9 g of water vapor in it. What is the absolute humidity of the air in the…

A: The given data are: ma=1.3 kgmv=3.9 g Here, ma, and mv represent the mass of air and the mass of…

Q: 45 gg of gasoline are mixed with 60 gg of water. What is the average density of the mixture? Express…

A:

Q: A 30 caliber rifle bullet is reported to weigh 120 grains. You have a dozen of these bullets in your…

A: Given,

Q: 24 cubic feet of a gas at a gauge pressure of 246 psig is compressed to 6 cubic feet. After the…

A: Given data: The initial volume of the gas is Vi=24 ft3. The initial pressure of the gas is Pi=246…

Q: The density of nuclear matter is about 1018 kg/m3. Given that 1 mL is equal in volume to cm3, what…

A: The given density of the nuclear matter is