Quizzes & Puzzles1 min ago
Science
Welcome To The AnswerBank ScienceAny discussion that is scientifically led is acceptable, whether it is about physics or a conspiracy theory.
Whilst discussions and debates are encouraged, The AnswerBank reserves the right to remove answers that are deliberately misleading, e.g. by implying that a statement is a scientific theory or law when it is not, especially when such answers may impact personal health choices.
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you toss a stone into a well and hear a splash in 2.5 seconds. the speed of sound is 340 meters/second. how deep is the well?
Can anyone tell me which chemical element is named after Copenhagan?
Why do they give a different reading when used on a hard or a soft surface?
Does anyone know where the alpha, beta, theta and delta waves in the brain emanate from?
How long would it take to fall through a hole which goes through the centre of the Earth?
hello all. how can I work out the starting amount if I have the final gross total and the vat percentage? For example, if I know that a net amount is 3894.86 and there is vat of 16% which is 741.88,...
Ok, we all know that DNA is unique to each individual. Say for instance someone needed a blood transfusion, would they then have the DNA of the person the blood came from? Or if there is a mixed blood...
hi does any one know how to explain what a dental polymers is without getting to complex
I remember seeing an article some time ago about the population in an African village who have evolved having two fingers and a thumb on each hand. Was this a fact or a hoax.
why do stars appear to twinkle? (i know lot of the time when we see them, they no longer exist) but why do they only appear at night sometimes - even when its doesn't seem couldy?
How do i calculate the % uncertainty for example of a Voltmetre I have a set of results for resistance in a wire, and the voltage alters from 1.17v to 1.47v Do i need to work out the % uncertaincy for...
how much would it cost to construct an incinerator that is capable of handaling 500000 tonnes a year, also how much would the matiance cost, oh yerh how meany ppl are needed to operate the macheary...
How does power affect the resistance of a circuit containing a bulb, using an LDR as a measuring source?
Is the August Bank Holiday (the 2nd if you're lucky enough to work in Scotland) officially the last Monday in August?
I have just frozen some water in a jar and marked the level of the ice in the jar, then I let the ice melt and the level has gone down showing that ice takes up a larger area than water. Bearing this...
Can anyone tell me how many litres of diesel there are in a tonne? I know it varies with conditions but a rule of thumb would be helpful!
Can anyone please tell me if cupronickel is a soft or hard metal ?
I was making coffee this morning. I pulled some high quality Kirkland bottled water from the garage to use for the coffee. The water in the bottle was not frozen - or even slushy. However, when I...
hwo could you make a dimmer switch at home ?
During a high tide, is water flowing uphill?
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