Question :
Let A be a 7 × 4 matrix. Show that the set of rows of A is linearly dependent.
Answer:
The row vectors of a matrix are linearly independent if and only if the rank of the matrix is equal to the number of rows in the matrix.
Since rank (A) = 4 , and the number of rows in the...
Question :
Consider the following augmented matrix for a system of linear equations.
1 2 3 | 4
0 1 2 3 |
| 0 0 k − 1 0 |
0 0 0 | k^2−1
where k is some real number. For which values of k does the system have
(a) no solutions?
(b) infinitely many solutions?
(c) a unique...
Homework Statement
Dear Yahoo Answers,
Can someone please help me with this as it's driving me crazy!
We had to complete an experiment where had to calculate the Young’s modulus of Rubber,
by doing an experiment.
So we used a rubber band and various weights to calculate the values, to...
The Moon And The Earth, Acceleration ( Question Answered, Just need check ) :D
The question we were given was.:
Given the facts that (i) the acceleration due to gravity at the surface of the Earth is 9.80 m/s2, (ii)
the Moon orbits the Earth every 27.32 days, and (iii) the radius of the...
Momentum+Physics Question :D
Hey Everyone.
This is a question which I have received and have completed to the best of my ability.
I was wondering if anyone would be willing to look over it too see if I was correct, and maybe aide me with the last two questions
The Question is:
In a...
Answer+Check
A 400 gram block of ice at -6°C is allowed to warm to room temperature which is 28°C.
Calculate the net amount of energy that had to flow into the block for this to happen. The following data will assist your calculation:
Specific heat capacity of liquid water = 4200 J Kg K...
I was wondering if it would be possible to get help with this question:
A 400 gram block of ice at -6°C is allowed to warm to room temperature which is 28°C.
If the sun provides 600 Joules of energy per square meter per second and all this energy was used to warm the ice block, calculate how...