Can hydrogen be used as cooking fuel? In addition to these applications, hydrogen can also be used as a cooking fuel. In many developing economies, a high percentage of domestic energy demand is related to cooking, which primarily relies on fossil and biomass fuels. What are the advantages and disadvantages of hydrogen? Hydrogen Fuel Cell […]
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 is data in the scientific method?
What is data in the scientific method? Data are the information gained from observing and testing an experiment. Scientists use data to gain understanding and make conclusions. Scientists often use graphs or tables to show their data and research findings. What are the steps in drawing a conclusion? Important Steps for Drawing Our Conclusions 1) […]
Which is true to P waves and S waves?
Which is true to P waves and S waves? P-waves and S-waves are body waves that propagate through the planet. P-waves travel 60% faster than S-waves on average because the interior of the Earth does not react the same way to both of them. P-waves are compression waves that apply a force in the direction […]
What happens if load is unbalanced?
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 is the friction coefficient?
What is the friction coefficient? The coefficient of friction, ยต, 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 […]
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, […]
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 […]
What happens when chlorine gas is treated with cold and dilute caustic soda?
What happens when chlorine gas is treated with cold and dilute caustic soda? Solution. When chlorine is passed through cold and dilute caustic soda solution, a mixture of sodium hypochlorite and sodium chloride is formed. How does sodium react with water? When sodium is added to water, the sodium melts to form a ball that […]