Answer:
0.6375 m/s
Explanation:
Let x be the distance of the man from the building
from the figure attached
initially the value of x=12
Given:
where the negative sign depicts that the distance of the man from the building is decreasing.
Now, Let The length of the shadow be = y
we have to calculate when x=4
from the similar triangles
we have,
or
Differentiating with respect to time 't' we get
or
Now for x = 4, and we have,
or
<u>here, the negative sign depicts the decrease in length and in the question it is asked the decreasing rate thus, the answer is </u><u>0.6375m/s</u>
<span>Some flows into your hands by conduction, some is lost to the surrounding air by convection</span>
Answer:
Angle of incidence
Explanation:
The diagram shows the reflection of a light ray.
When a light ray undergoes reflection:
- The incident ray, the reflected ray and the normal to the surface all lie in the same plane
- The angle of reflection is equal to the angle of incidence
The two angles are defined as follows:
- The angle of incidence is the angle between the incident ray and the normal to the surface (1)
- The angle of reflection is the angle between the reflected ray and the normal to the surface
In the picture, we see that the angle marked with X corresponds to the angle defined in (1), so it is the angle of incidence.
Answer:
c
Explanation:
c beacause we have both that are in c
Answer:
When writing a lab report where do your data tables belong?
Results.