Answer:
1) Force on top face
2)Force on the side face
Explanation:
a)
We know that
Pressure shall be calculated at a depth of (1-0.45) meters from the top of the water surface
Thus force is calculated as under
b)
The force on one of it's sides is calculated in the same manner except that the pressure is obtained at the centroidal level of the face of cube
Thus
Answer:
Atacama Large Millimeter/Submillimeter Array (ALMA) Observatory's primary goal is to provide a radio telescope array that will allow scientists to observe and image galaxies out to the edge of the universe, and stars and planets in their formative stages with unprecedented clarity.
Explanation:
Answer:
2.81 kW
Explanation:
Initial power output, P = 20.0 kW
Initial amplitude, A = 1.20 m
Final Amplitude, A = 0.450 m
Power is proportional to extracted energy which is proportional to the intensity of the wave and intensity of the wave is directly proportional to the square of the amplitude.
P ∝ E ∝ I ∝ A²
Substitute the values to find the value of power produced:
The velocity of the earth in its orbit around the sun is
Explanation
Given that the distance between sun and earth is 149500,000,000m
.
This is the radius of the nearly circular orbit of the earth around the sun.
r=149,500,000,000m=
What a relief ! That gives her time to step out of the way, before the ball
comes crashing down in the same place where she was standing.