What is the formula for work in science? Work can be calculated with the equation: Work = Force × Distance. The SI unit for work is the joule (J), or Newton. meter (N. m). When K E decreases the work done is? According to work energy theorem the work done by the force is equal […]
Do facts change over time?
Do facts change over time? Facts are simple observations of the world, and they do not change over time. Theories are hypotheses about what these facts mean, or how they should be understood, and they change over time. But, they may still change over time. This view supposes that the process of observation is completely […]
What is LHC experiment?
What is LHC experiment? LHC experiments Eight experiments at the Large Hadron Collider (LHC) use detectors to analyse the myriad of particles produced by collisions in the accelerator. These experiments are run by collaborations of scientists from institutes all over the world. Each experiment is distinct, and characterised by its detectors. What is a beauty […]
Is it possible for polluted water to be transported to another country?
Is it possible for polluted water to be transported to another country? Transboundary pollution is the pollution that originates in one country but is able to cause damage in another country’s environment, by crossing borders through pathways like water or air. Pollution can be transported across hundreds and even thousands of kilometers. This is why […]
What happens to current if voltage stays the same and resistance increases?
What happens to current if voltage stays the same and resistance increases? If the voltage stays the same, but resistance goes up, what happens to the amperage? Assuming a constant voltage, the current is inversely proportional to the resistance. To answer the question, if the resistance goes up, the current (amperage) goes down. What happens […]
What is the strongest argument for the death penalty?
What is the strongest argument for the death penalty? The argument most often cited in support of capital punishment is that the threat of execution influences criminal behavior more effectively than imprisonment does. As plausible as this claim may sound, in actuality the death penalty fails as a deterrent for several reasons. What is the […]
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Why did steam ships have masts?
Why did steam ships have masts? Masts did carry sails on many steam ships. They were used to assist the engines when the conditions were favourable, and also help steady the ship in heavy seas. Eventually cargo handling masts became quite specialised ganty structures and didn’t bear much resemblance to a traditional ships mast. Are […]
What is the position of the image when an object is placed at a distance of 20 cm from a concave mirror of focal length 30 cm?
How is a trebuchet constructed?
How is a trebuchet constructed? According to the Mojing, the traction trebuchet was 17 feet high with four feet buried below ground, the fulcrum attached was constructed from the wheels of a cart, the throwing arm was 30 to 35 feet long with three quarters above the pivot and a quarter below to which the […]