Answer: SG = 2.67
The specific gravity for the sand is 2.67
Explanation:
Specific gravity is determined by the formula: density of the substance/density of water
Provided information;
Mass of sand m = 100g
The volume of sand equals the volume of water it displaces
Vs = 537.5cm^3 - 500 cm^3
Vs = 37.5cm^3
Calculating density of sand = m/Vs = 100g/37.5 cm^3
Ds = 2.67g/cm^3
Density of water Dw = 1.00 g/cm^3
Thus, the specific gravity of the sand can be expressed as
SG = Ds/Dw
SG = (2.67g/cm^3)/(1.00g/cm^3)
SG = 2.67
The specific gravity of the sand stands at 2.67
Answer:
1. The force applied by the shelf supporting the book.
Explanation:
The free body diagram for the book is represented as follows:
1 - The weight of the book acting downward
2 - The normal force exerted by the shelf upward on the book.
As the book remains stationary, these two forces balance each other, and in accordance with Newton's Third Law, the reactive force equivalent to gravity is opposite and equal to the weight of the book. This reaction force prevents the book from falling off the shelf.
Response/Clarification:
Each of us receives 2 versions of a gene from our parents, with one inherited from the mother and one from the father.
Both our mother and father possess 2 versions of every gene. Therefore, the specific version we inherit is determined randomly, much like the outcome of a coin flip. This applies to both parents.
For instance, if the mother has one variant causing thick ears (A) and another for thin ears (a), she is Aa.
Similarly, the father also has these variants and is Aa as well.
The father can transfer either A or a, while the mother can also transfer either A or a.
As a result, their offspring can be AA, Aa, or aa. An AA genotype results in thick ears, while aa results in thin ears. The Aa genotype produces ears of intermediate thickness, akin to bunny B. This demonstrates the concept of incomplete dominance
Answer:
a) 
b) D does not influence the long-term results.
Explanation:
Given that
A = A0 cos(ωt)
This is a linear equation hence the integration factor, I
Now using the characteristics of linear equations
b) At t= 0
Thus, the initial condition
does not affect the long-term outcome.
