You really have a thing for screaming outside. So on a day where the speed of sound is 343 m/s you go outside and scream at a wa
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Answer:
a) There are electrons in a liter of water.
b) The net charge is -53601707,1 C
Explanation:
a) To find out how many electrons are in a liter of water (equivalent to 1000 grams of water), we have to find out how many molecules of water there are and then multiply it by 10 (e- per molecule).
We can find out how many molecules are by finding the number of moles and then multiplying it by Avogadro's number (number of elements per mol):
b) As all electrons have the same charge, in order to find the net charge of those electrons we have to multiply the charge of a single electron by the number of electrons:
An important clarification is that while the net charge may seem huge, water as a whole is a neutral medium, because there are as many protons as there are electrons, and as they have the same charge, the net charge of water is 0.
as it is given that curved marked the speed as v = 70 km/h
so we will first convert the speed into m/s
now we know that here friction force will provide centripetal force
As we know that centripetal force is given as