What is the approximate force the Earth would exert on a 10 kilogram object?
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The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?

How does the formation of intrusive and extrusive igneous rocks differ?

Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?