Physics
A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls

In front of him
Into his hand
By his side
Behind him

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Physics
Why are we able to hear short wave broadcasts better than long wave broadcasts ?

Short waves are unaffected by atmospheric disturbances.
Short waves are more energetic than long waves.
By convention, short waves are meant for long distances, whereas long waves are reserved for short distances.
Short wave broadcasts are made by nearby radio stations.

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