Answer:
Wave energy is unique because it is the most concentrated form of renewable energy on earth, with power density much higher than that of wind and solar energy. ... As waves can travel for hundreds and even thousands of kilometers with virtually no loss of energy, they act as an energy reservoir charged by the wind.
Answer:
its B
Explanation:
the summer solstice happens when the northern hemisphere is tilted towards the sun
Answer:
(0,0),(-4,6)
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Explanation:
Given
Coordinates: (0,0) to (4,6)
Required
Reflect over the y axis
Represent the initial coordinate with (a,b)
When reflect over y axis, the new coordinate becomes
In this case
The reflected coordinate becomes 
<em>Hence, the coordinates of the reflected line is (0,0),(-4,6)</em>
Answer:
They did not have flood control at first but then organized it same with organized government
Explanation:
Answer: mass of moon = 7.350 * 10²² Kg
Mass of earth = 5.98 * 10²⁴Kg
Explanation:
acceleration due to gravity = (gravitational constant * mass of the body) / (distance from the centre of mass)²
g = Gm/r²
G = 6.673 * 10^-11
g(moon) = 1.62 m/s²
r (moon) = 1.74 *10⁶
g = GM/r²
M = gr² / G
M = 1.62 * (1.74 * 10⁶)² / 6.673 * 10^-11
M = 7.350 * 10²² Kg
Mass of moon = 7.350 * 10²² Kg
Mass of earth =?
g = GM / r²
M = gr² / G
g = 9.8 m/s²
G = 6.673 * 10 ^-11
r = 3.84 * 10⁸m
M = 9.8 * (3.84 * 10⁸)² / 6.673 * 10^-11
M = 5.98 * 10²⁴ Kg
Mass of the earth = 5.98 * 10²⁴kg
