A volcano throws a stone 9,000 m into the air. What is the minimum initial velocity of the stone; In reality, air friction is significant and the actual velocity may be higher.

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.

The inverse square law applies to: intensity of sound gravitational force intensity of light electric force magnetic force

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