malachilaurenc
14.09.2019 •
Physics
Afootball quarterback is moving straight backward at a speed of 2.11 m/s when he throws a pass to a player 21.1 m straight downfield. the ball is thrown at an angle of 28.3° relative to the ground and is caught at the same height as it is released. what is the initial velocity of the ball relative to the quarterback? (assume downfield to be in the +x-direction. enter the magnitude in m/s and the direction in degrees counterclockwise from the +x-axis.)
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Ответ:
Despite that there are no chemical changes to its constituents, the physical properties of a mixture, such as its melting point, may differ from those of the components. Some mixtures can be separated into their components by using physical (mechanical or thermal) means.