Answer:
The initial acceleration is 0,221 m/s^2.
Explanation:

The spring balance provides a mass measurement
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Answer: The nearest position of an object from a normal human eye so that its image is formed on retina is 25 CM. If the object is placed at a distance less than 25 CM, then the blurred image of the object is formed on retina as the focal length of a lens cannot be decreased below a certain limit. Hence we cannot see it clearly.
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radio waves bc they have the longest wave lenthgs in a magnetic spectrum
A.a sign that breaks loose from the ground when a force is applied to it