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# Near the surface of the earth, objects in free fall (but not terminal velocity) experience a. constant distance. b. constant acceleration. c. constant speed. d. constant velocity.   ### Another question on Physics Physics, 02.02.2019 00:10
In this problem, you will determine and apply the appropriate boundary condition for reflection from a free-end of a spring (i.e., an end that is free to move in a direction transverse to the length of the spring). a. we begin by considering the forces exerted on a ring that is connected to a spring and that is free to slide along a rod. (see the top view diagram at right.) assume that the ring is massless and that the rod is frictionless. i. what is the net force on the ring? (hint: consider what happens to the net force on an object as its mass approaches zero.) explain. does the net force on a massless ring depend on the acceleration of the ring? explain. what is the magnitude of the gravitational force exerted on the ring? (recall that the ring is massless.) ii. does the force exerted on the ring by the rod have a component that is parallel to the rod? explain. (hint: recall the assumptions made above.) iii. in the space at right, draw and label a free-body diagram for the ring at the instant when it is farthest from its equilibrium position. (hint: which objects are in contact with the ring? ) Physics, 01.02.2019 00:16
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Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands? Physics, 30.01.2019 22:40
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Near the surface of the earth, objects in free fall (but not terminal velocity) experience a. consta...
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