Answer:
2 hours B
Step-by-step explanation:
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Answer:
<h2>The line that forms the shadow is 10.26 meters long, approximately.</h2>
Step-by-step explanation:
This problem is about a right triangle, becasue the truck and its shadow are perpendicular.
We are gonna call the distance of the shadow on the ground, as the image attached shows.
To find the answer, we need to use Pythagorean's Theorem, where the hypothenuse is 11.2 meters, and one leg is 4.5 meters.
Therefore, the line that forms the shadow is 10.26 meters long, approximately.
The measure of angle 1 is 106°, because since it is a straight line they measure would have to add up to 180°.
Answer: d. None of the above are correct.
Step-by-step explanation: Noise is a superfluous random alteration in an eletrical signal. There are different types of noises created by different devices and process. Thermal noise is one of them. It is unavoidable because is created by the agitation of the charge carriers, due to temperature, inside an eletrical conductor at equilibrium and is present in all eletrical circuits.
The formula to find the thermal noise power (N) is: N = .T.B, where:
is Boltzmann constant (1.38.J/K);
T is temperature in Kelvin;
B is the bandwith;
Calculating the thermal noise power:
N = 1.38.·292·40
N = 16118.4. dBm
The thermal noise power [N] = 16118.4. dBm
Noise power density or simply Noise density (N₀) is the noise power per unit of bandwith and its SI is watts per hertz.
For thermal noise, N₀ = kT, where
<em>k </em>is the Boltzmann constant in J/K;
T is the receiver system noise temperature in K;
N₀ = 1.38. . 292
N₀ = 402.96. W/Hz
The thermal noise power density [N₀] = 402.96. W/Hz
True that is true corectomundo