Answer:
The frequency doesn't change. If the wavespeed increases, then the wavelength must also increase ... It's just the distance the wave travels during each complete wiggle.
Step-by-step explanation:
- Sound waves are a type of mechanical wave which requires a material medium for transmission. The transmission of such waves occurs as a result of vibration of particles in the material medium. The faster the vibration of the particles the higher the speed of the sound waves.
- When a sound enters a new medium where the sound travels faster, it means the vibration of particles is high, and the wavelength of the waves increases which means the speed of the wave has increased. The frequency on the other hand will remain constant.
Answer:
8 units
Step-by-step explanation:
if you look at a grid and mark the numbers, 3 and -5 are 8 units apart.
<h2>Matrix</h2>
<em><u>matrix</u></em> is a rule of writing or presenting data consisting of rows and columns in an open or closed parenthesis.
<em><u>•</u></em><em><u> </u></em><u><em>the problem above is about matrix </em><em>multiplication</em></u>
the first type of multiplication :
if k is a constant and A is a matrix, then kA can be operated by multiplying each element of matrix A by the constant k.
<em>ex </em><em>:</em><em> </em>3[-1 2 2] = [-3 6 6]
multiplication of two matrices :
the multiplication of a 1x n matrix and a n × 1 column matrix is a 1 × 1 matrix.
<em><u>the above problem using matrices of 3 × 1 and 1 × 3 size will produce a 3 × 3 </u></em><em><u>matrix</u></em><em><u>. </u></em>
<h3>Answer :</h3>
| 3 | | 9 |
3|19| [-1 -3 -5] =|57| [-1 -3 -5]
|12| |36|
| 9×(-1) 9×(-3) 9×(-5) |
= | 57×(-1) 57×(-3) 57×(-5)|
| 36×(-1) 36×(-3) 36×(-5)|
| -9 -27 -45 |
= | -57 -171 -285|
| -36 -108 -180|
Answer: 78
Step-by-step explanation: 78