Answer:
The process of heat conduction depends on four basic factors: the temperature gradient, the cross section of the materials involved, their path length, and the properties of those materials.
Explanation:
Answer:
Option C. 4 Hz
Explanation:
To know the correct answer to the question given above, it is important we know the definition of frequency.
Frequency can simply be defined as the number of complete oscillations or circles made in one second.
Considering the diagram given above, the wave passes through the medium over a period of one second.
Thus, we can obtain the frequency by simply counting the numbers of complete circles made during the period.
From the diagram given above,
The number of circles = 4
Thus,
The frequency is 4 Hz
<span>Answer : P = 3527 Pa
Explanation:
Given : height, h = 279 m
and density of air , Ď = 1.29 kg/m3
Change in pressure , P = h*Ď*g
We know that gravity, g = 9.8 m/s2
Therefore P = 279 * 1.29 * 9.8 = 3527 Pa</span>
You said that the useful output power from the model is 6 watts. You also said that the model is 80% efficient. We have no reason to doubt your word, so we know that
(useful output) / (input power) = 80% or 0.8
(6 watts) / (input power) = 0.8
Multiply each side by (input power): 6 watts = (0.8) (input power)
Divide each side by 0.8 : Input power = (6 watts/ 0.8)
<em>Input power = 7.5 watts</em>
Answer:
Unlike the other alkali metals, lithium has a single valence electron and can easily be delivered to form a cation. Of this reason, lithium is a strong heat and electricity conductor as well as a highly reactive element although it is the least reactive of alkali metals.
