the <u>average powe</u><u>r</u> output of the sun is <u>3.8 × </u><u> W</u> given that about 1350 w/m2 reaches the upper atmosphere of the earth.
As we know intensity falling over a surface is equal to Energy falling per unit area per unit volume.
I =
Since Power is equal to energy/time
I = power/area
or
Power = Intensity × area
Now, Distance from Sun to Earth , r = 149.6 × m
So, Surface area of the sphere of radius is:
A = 4 π
= 4 × 3.14 × (149.6 × )²
= 2.81 × m²
Thus Average Power output of the sun will be:
P = 1350 × 2.81 ×
= 3.7935 ×
P = 3.8 × W
So the average power output of the sun is 3.8 × W.
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Answer:
Acoustic microstreaming
Explanation:
Acoustic microstreaming is the swirling effect produced by water stream confined in a spaced of a periodontal pocket.
- It is the movement of water in a particular direction as a result of mechanical pressure within the fluid body.
- They are often used in dental procedures to remove particulates from the teeth.
- It mostly relies on the properties of sound waves to achieve this goal
Answer:
- Our final answer is 15 kg .
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Answer:
18301.4Kg
Explanation:
Step 1:
Data obtained from the question. This include the following:
Mass 1 (M1) = 0.512Kg
Mass 2 (M2) =..?
Distance apart (r) = 0.0250m
Force (F) = 0.001N
Gravitational force constant (G) = 6.67x10^-11Nm²/Kg²
Step 2:
Determination of the mass, M2 needed to create a force of 0.001N.
This can be obtained as follow:
F = GM1M2/r²
0.001 = 6.67x10^-11 x 0.512 xM2/0.025²
Cross multiply
6.67x10^-11 x 0.512 xM2 = 0.001x0.025²
Divide both side by 6.67x10^-11 x 0.512
M2 = (0.001x0.025²)/(6.67x10^-11x0.512)
M2 = 18301.4Kg
Therefore, a mass of 18301.4Kg is needed
Answer:
there is less mass to move so the 2kg ball will move faster. the kinetic energy of the 5kg ball will move slower due to the fact that it needs more energy to move if it has more mass.