The diameter of the he atom is approximately 0.10nm., Ask an Expert

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Q1. The diameter of the He atom is approximately 0.10nm. Compute the density of the He atom in (assuming that it is a sphere).

Q2. A stone is thrown vertically upward with a speed of 10m/s from the edge of a cliff 81m high.

A) How much later does it reach the bottom of the cliff?

B) What is its speed just before hitting?

C) What total distance did it travel?

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