Answer:
Explanation:
It is given that,
Height of the building, h = 245 ft
The base of the building and shadow is x.
Let is the angle of elevation that is formed by lines from the top and bottom of the building to the tip of the shadow. Using the trigonometric ratio as :
When x = 300 feet
So, the rate of change of the angle of elevation is -0.001633 rad/ft. Hence, this is the required solution.
Answer:
(D)
to establish an understanding of key concepts relating to population biology
Explanation:
Thats what I would go with but I didn't read the article so I don't know what context was used. Good luck! :)
Answer:
The intensity of a light from the source at a distance of 10 meters is 0.0026 foot-candle.
Explanation:
Given that,
Distance from the source = 2 meter
Intensity = 0.065 foot -candle
New distance = 10 m
We know that,
The intensity I of light varies inversely with the square of the distance from the source.
We need to calculate the value of constant
Using formula of intensity
Put the value into the formula
We need to calculate the intensity
Using formula of intensity again
Put the value into the formula
Hence, The intensity of a light from the source at a distance of 10 meters is 0.0026 foot-candle.
Answer:Minerals are naturally occurring inorganic substances, often with a crystalline structure. They are composed largely of the most abundant elements in the Earth's crust, silicon and oxygen, coupled with metals or the metallic elements of iron, calcium, sodium, potassium, and magnesium.
Explanation:Hope this helped u also may i plz have brainlist plz only if u wanna give me brainlist though. Have an great day kind sir or ma'am!
The answer is A. The resistance will be half(1/2R)
V=IR
R=V/I
If I is increased, R would decrease as R is inversely proportional to I.
Similarly, I is doubled by a factor of 2, R will decrease by a factor of 2.
Hope it helped!