SONAR stands for "sound navigation and ranging,” and it is used to map and explore the ocean floor.
There is no list of people below -_-
Answer:
yeah I think
Explanation:
I forget the deep method but u can detect the distance of the lighting bolt striking by counting from the lighting to the sound of thunderclap and dividing by a number but I forget the number
IN my conclusion it makes sense
Answer:
(a) Q = 142.67 W
(b) Basal Metabolic Rate = 178.33 W
Explanation:
(a)
We can find the heat radiated by the person by using Stefan-Boltzman's law:
where,
Q = heat radiated per second = ?
σ = Stefan-Boltzman Constant = 5.6703 x 10⁻⁸ W/m².k⁴
A = Surface Area = 2 m²
T = Temperature of Skin = 30° C + 273 = 303 k
Ts = Temperature of room = 18° C +273 = 291 k
Therefore,
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<u>Q = 142.67 W</u>
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(b)
Since the heat calculated in part (a) is 80 percent of basal metabolic rate. Therefore,
<u>Basal Metabolic Rate = 178.33 W</u>
Answer:
Value of acceleration in each case is
Explanation:
According to newton's law :
...equation 1.
In the given case, Force by both the children - Friction force .
Putting value of F in equation 1.
Now, if friction force = 20 N.
Therefore,
Putting value of F and a in equation 1.
Hence , this is the required solution.