I think the answer is A
.
im not the best with physics but i think its right
Answer:
t=27725.8minutes
Explanation:
To determinate use the law the change of volume in determinate time is derivate so:

The flow in is zero and the flow out is modeling with V as the volume out in the volume of the lake in the reason of change.

Integrate to get the volume function

The find the constant C in the time t=0 the volume is knowing so:


The volume is 1 part per million so:


This question involves the concepts of Wein's displacement law and characteristic wavelength.
The blackbody temperature will be "3.22 x 10⁵ k".
<h3>WEIN'S DISPLACEMENT LAW</h3>
According to Wein's displacement law,

where,
= characteristic wavelength = 9 μm = 9 x 10⁻⁹ m- T = temperature = ?
- c = Wein's displacment constant = 2.897 x 10⁻³ m.k
Therefore,

T = 3.22 x 10⁵ k
Learn more about characteristic wavelength here:
brainly.com/question/14650107
Answer:
The correct option is (c) "it bounces the light towards a focal point"
Explanation:
There are two types of spherical mirrors i.e. concave and convex.
A concave mirror is a type of spherical mirror that is curved inwards. For this type of mirror the rays of light are bounced back and converge to the focal point of the mirror.
So, the correct option is (c).