What is the most widely misused drug among 12 to 17 year olds? Among adolescents aged 12 to 17, marijuana is the most commonly used drug, followed by NMU of prescription medications, inhalants, and hallucinogens. An exception to this sequence is those aged 12 to 13 years, for whom the most commonly misused drugs are […]
What are the best thermal insulators?
What are the best thermal insulators? The 5 common Thermal Insulation materials Mineral Wool. Mineral wool covers quite a few types of insulation. Fibreglass. Fibreglass is an extremely popular insulation material. Polystyrene. Polystyrene is a waterproof thermoplastic foam which is an excellent sound and temperature insulation material. Cellulose. Polyurethane Foam. Is blown-in insulation worth it? […]
Can a cloud freeze?
Can a cloud freeze? Clouds do freeze in extreme temperatures. Cirrus clouds, which are the highest, are not liquid droplets, but rather ice crystals. What confuses me is why you believe that freezing to solid crystals would make them fall from the sky. The ice crystals do not weigh any more than water droplets would. […]
What is approximate temperature and pressure?
What is approximate temperature and pressure? NTP – Normal Temperature and Pressure – is defined as air at 20oC (293.15 K, 68oF) and 1 atm (101.325 kN/m2, 101.325 kPa, 14.7 psia, 0 psig, 29.92 in Hg, 407 in H2O, 760 torr). Density 1 What is the approximate vapor pressure when the gas condenses at 80 […]
Which out of the following is not an intensive property?
Which out of the following is not an intensive property? Volume is not an intensive property. Is pressure an intensive property? 1 Answer. You are right that intensive properties are not additive like the properties which depend on the extent of the system. Pressure is indeed an intensive property because it is force divided by […]
What is the meaning of Spacelike?
What is the meaning of Spacelike? not comparable What do you mean by Lorentz transformation? In physics, the Lorentz transformations are a six-parameter family of linear transformations from a coordinate frame in spacetime to another frame that moves at a constant velocity relative to the former. The transformations are named after the Dutch physicist Hendrik […]
What are the 3 things that an internal combustion engine needs to run?
What are the 3 things that an internal combustion engine needs to run? Beyond the combustion stroke, which pushes the piston down from the top of the cylinder, there are three other strokes: intake, compression, and exhaust. Engines need air (namely oxygen) to burn fuel. How do you adjust a carburetor? Carb Quick Guide Verify […]
What is the main aim of sustainable development?
What is the main aim of sustainable development? The aim of sustainable development is to balance our economic, environmental and social needs, allowing prosperity for now and future generations. What are the factors of sustainable development? In modern society, the concept of sustainable development is based on three factors, which are economic development, environmental conservation, […]