webassign.net LEARN MORE REMARKS Notice that it wasn\'t necessary to compute the

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webassign.net LEARN MORE REMARKS Notice that it wasn't necessary to compute the velocity gained upon leaving the the mechanical energy at each of the two points of interest was required, where the block was at rest QUESTION A real spring will continue to vibrate slightly after the mass has left it. How would this affect the results? (Select all that apply) It decreases the maximum height of the block. It increases the maximum height of the block. O It has no effect on the speed of the block. It increases the speed of the block as it leaves if the spring happens to vibrate outward at the right time. 2 The departing block leaves at a lower speed. It results in less energy being transferred to the block. Consider whether the initial energy of the compressed spring is changed by the vibration that occurs later and whether the energy left in the spring and the energy transferred to the block are changed. If so, how? Then consider what that implies about the speed of the block. What does any change in energy imply about the maximum height? PRACTICE IT Use the worked example above to help you solve this problem. A 0.452 kg block rests on a horizontal, frictionless surface as shown in the figure. The block is pressed back against a spring having a constant of 675 N/m, compressing the spring by 10.2 cm to point . Then the block is released (a) Find the maximum distance d the block travels up the frictionless incline re-30.0 1.59 (b) How fast is the block going when halfway to its maximum height? 2.79 HINTS: GETTING STARTEDI rMSTUCK EXERCISE A 1.15 kg block is shot horizontally from a spring, as in the example above, and travels 0.511 m up a long respect to the horizontal, and the spring orginaly wos compressed by o.i m, find the spring constans before coming to rest and sliding back down. Ir the ramp makes an angle of 45.0° with

Explanation / Answer

Answers for objective question..

1. it decreases the maximum height of the block

2. the departing block leaves at a lower speed            and also

3. it results in less energy being transferred to the block

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