Answer:
Explanation:
The speed of light (electromagnetic wave) is given by the following formula:
(1)
Where:
is the speed of light
the frequency
the wavelength
So, we have to find
from (1):
(2)

<u>Finally:</u>
<u></u>

Knowing 

C is the first & the second question is A
Explanation:
Below is an attachment containing the solution
Explanation :
It is given that :
The initial velocity of the car is 10 m/s.
Juliette sets the acceleration to zero.
We know that, acceleration
\
where,
u is the initial velocity and v is the final velocity.
So, final velocity will become 10 m/s.
Hence, the car will move with the constant velocity i.e. 10 m/s.
So, Shakina described that the car will move with the constant velocity of 10 m/s as acceleration is zero.
Answer:
<em>The answer is C.</em>
Explanation:
Cells are the smallest organisms and makes up all living thing or being. The tissues are made of cells. The organs are made of tissues. The organ systems are made of organs. Therefore the order is C. cells, tissues, organs, and organ systems.