Physics, 20.11.2020 21:30, jraemier5861
PLZ HELP
A ball rolls across the floor. Because of friction, the ball will eventually slow down and come to a stop. Which of the following is evidence of energy
transfer resulting from the change in the motion of the ball?
Different surfaces create different amounts of friction.
The ball moves in the same direction as it rolls across the floor.
Energy sets the ball in motion.
The ball and the floor gain a small amount of heat energy.
Answers: 1
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The vector a? is 3.50 cm long and is directed into this page. vector b? points from the lower-right corner of this page to the upper-left corner of this page and has the components bx=-19.5 cm , by=25 cm. in the right-handed coordinate system, where the +x-axis directed to the right, the +y-axis toward the top of the page, and +z-axis out of the page, find the x-component of the vector product a? ×b? , measured in cm2.
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PLZ HELP
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