Where do greenhouse gases absorb radiation from? Water vapor, carbon dioxide, methane, and other trace gases in Earth’s atmosphere absorb the longer wavelengths of outgoing infrared radiation from Earth’s surface. These gases then emit the infrared radiation in all directions, both outward toward space and downward toward Earth. Why is the natural greenhouse effect of […]
What qualifications do you need to be an astrophysicist?
What qualifications do you need to be an astrophysicist? You would need a degree in astronomy or astrophysics. For entry, you generally need 4-5 Highers including Maths, Physics and usually another science subject. You then need to do specialist postgraduate study, usually a PhD, to get a post as a professional research astronomer. Does NASA […]
What are 3 different ways energy can be stored?
What are 3 different ways energy can be stored? Energy can be stored in a variety of ways, including: Pumped hydroelectric. Electricity is used to pump water up to a reservoir. Compressed air. Electricity is used to compress air at up to 1,000 pounds per square inch and store it, often in underground caverns. Flywheels. […]
What nervous system has no positive effects?
What nervous system has no positive effects? Exercise has no positive effects on the nervous system. Physical activity is the movement of large muscle groups through daily activities. How physical activity improves our daily living? Physical activity or exercise can improve your health and reduce the risk of developing several diseases like type 2 diabetes, […]
What are the chemical properties of benzene?
What are the chemical properties of benzene? Benzene has a boiling point of 80.1 °C (176.2 °F) and a melting point of 5.5 °C (41.9 °F), and it is freely soluble in organic solvents, but only slightly soluble in water. What are the physical properties of phenol? Phenols are similar to alcohols but form stronger […]
What torque should I use for screws?
What torque should I use for screws? Setting 1 is low speed/high torque and is best for driving screws. Setting 2 is a medium speed/torque and can be used for drilling or driving. Setting 3 is the highest speed and is meant for drilling or driving fasteners. Does length of screwdriver matter? A: This may […]
What is the friction coefficient?
What is the friction coefficient? The coefficient of friction, µ, is a measure of the amount of friction existing between two surfaces. A low value of coefficient of friction indicates that the force required for sliding to occur is less than the force required when the coefficient of friction is high. How much force is […]
Why do electrons transfer from a sweater to a balloon?
Why do electrons transfer from a sweater to a balloon? Since electrons have a negative charge, the balloon now has a negative charge. But the sweater fibers lost some of their electrons, so now the fibers have a positive charge (they have more protons than electrons). Positive and negative attract so if you bring the […]
Why does a metal spoon feel colder than a wooden spoon?
Why does a metal spoon feel colder than a wooden spoon? Even though they are the same temperature, the metal will feel colder than the wood because of the thermal conductivity of the metal, compared to the wood. It is because the metal conducted heat faster that it feels colder than the wood, which conducted […]
How many total oxygen atoms are there in the reactants of photosynthesis?
How many total oxygen atoms are there in the reactants of photosynthesis? six atoms Where do the oxygen atoms go? The single oxygen atoms latch onto O2 molecules to form O3 (the chemical formula for ozone). The stratosphere has higher concentrations of O3 because there is more UV present. The ozone layer filters out UV, […]