Why can white light be split into Colours?

Why can white light be split into Colours? White light is a mixture of many different colours, each with a different frequency . Light is refracted when it enters the prism, and each colour is refracted by a different amount. This means that the light leaving the prism is spread out into its different colours, […]

How do you calculate energy change?

How do you calculate energy change? To calculate an energy change for a reaction: add together the bond energies for all the bonds in the reactants – this is the ‘energy in’ add together the bond energies for all the bonds in the products – this is the ‘energy out’ energy change = energy in […]

What happens if gas pressure is too high?

What happens if gas pressure is too high? High gas pressure can be just as bad for your furnace. That’s because it greatly increases the risk of furnace overheating. When this happens, all manner of internal components may become damaged by the excessive heat. What are four factors that determine the efficiency of a furnace? […]

What are two types of electric current?

What are two types of electric current? Current electricity is a constant flow of electrons. There are two kinds of current electricity: direct current (DC) and alternating current (AC). With direct current, electrons move in one direction. Batteries produce direct current. Is gold good conductor? Gold is used as a contact metal in the electronics […]

Is electromagnetic force affected by intervening medium?

Is electromagnetic force affected by intervening medium? EM force does not need any intervening medium. Why is gravitational force independent of medium? Gravity is unipolar, attractive. So when it goes through a medium, there is no polarizing effect or polarizing forces. Thus the gravitational constant is independent of the intervening medium. Does electrostatic force depend […]

Has Chang E 5 landed?

Has Chang E 5 landed? Like its predecessors, the spacecraft is named after the Chinese moon goddess Chang’e….Chang’e 5. Spacecraft properties Landing date 16 December 2020 17:59 UTC Return capsule Landing site Inner Mongolia, China Lunar orbiter Orbital insertion 28 November 2020 12:58 UTC Is Chang E real? Chang’e, Wade-Giles romanization Ch’ang O, the Chinese […]

How do you sink wood in water?

How do you sink wood in water? To saturate your wood you can soak it in water for a while. Keep some kind of weight on the wood to keep the entire piece submerged. The soaking will also help to leach tannins out of the wood which can discolour the water and can be harmful […]

What is my ideal weight for my height?

What is my ideal weight for my height? Body mass index (BMI) is one of the most popular ways to calculate an ideal weight range. Getting your current BMI is as easy as plugging your height and weight into a calculator. A result between 18.5 and 24.9 means you’re in the “normal” weight range for […]

How do we calculate tension?

How do we calculate tension? Tension Formulas – How to Calculate Tension Force Tension can be easily explained in the case of bodies hung from chain, cable, string etc. T = W ± ma. Case (iv) If the body moves up or down with uniform speed, tension; T = W. T=m(g±a) As tension is a […]

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