Answer:
<em>The mass of mercury = 0.136 kg</em>
Explanation:
Density: This is defined as the ratio of mass of a body and the volume of that body. The S.I unit of density is kg/m³. It can be represented mathematically as
D = m/v
m = D× v .......................... Equation 1
Where D = density of the mercury, m = mass of the mercury, v = volume of the mercury.
<em>Given: D = 13600 kg/m², v = 10 cm³ = (10×1/1000000) = 0.00001 m³</em>
<em>Substituting these values into equation 1,</em>
<em>m = 13600×0.00001</em>
<em>m = 0.136 kg.</em>
<em>Therefore the mass of mercury = 0.136 kg</em>
Answer:
512
Explanation:
Given sequence:
1/8, 1/2, 2, ...
Unknown:
The 7th term of the geometric sequence = ?
Solution:
To solve this problem, we apply the formula below;
Sₙ = arⁿ⁻¹
a is the first term
r is the common ratio
n is the nth term
r = = = 4
Input the parameters and solve;
Sₙ = x 4⁷⁻¹
Sₙ = x 4⁶ = 512
A reaction that requires FREE energy it must be non spontaneous so option b is correct.
<h2>What is an electric fuse?</h2><h3>
Answer: Electric fuse is a safety device used to limit the current in an electric circuit which melts and breaks the circuit whenever there is an excess flow of current through the circuit.</h3><h2>What is the working principle of electric fuse?</h2><h3>An electric fuse is based on the principle of heating effect of electric current. It is made up of thin metallic wire of non-combustible material. A fuse is always connected between the ends of the terminal in a series connection with the circuit.</h3>