Because it is really hard and rocks can't be visible or vibrate
Answer:
a) 10.56mA the current passing between the electrodes
b) away from the negative charge
Explanation:
The detailed step by step calculation is as shown in the atached file.
By Application of faradays first law of electrolysis. i.e Q = it
Answer:
17.8 kg
Explanation:
The force with which the rock hits the ground is the force of gravity, which is also known as weight of the object, and whose magnitude is given by:
where
m is the mass of the object
g is the acceleration of gravity
In this problem, we know the weight of the rock
W = 174 N
We also know the acceleration of gravity,
So, we can find the mass of the rock:
There are three different forms of potential energy. The rock hanging above the ground has a form of stored energy called gravitational potential energy. ... The higher an object is above the ground or the greater its mass, the more gravitational potential energy it has.
Answer: Option (d) is the correct answer.
Explanation:
Article's help people know about the advantages or disadvantages of the product or topic for which it is written.
Basically an article provides an overall scenario about a situation or thing so that readers can decide themselves whether they are in favor or against the thing on which article has been written.
Therefore, we can conclude that out of the given options, to get the reader to understand the two types of signals is most likely the author’s motive for writing the article.