DO THIS ONLY TYPEWRITTEN FOR UPVOTE. DOWNVOTE FOR HANDWRITTEN. THANK YOU. SKIP IF YOU ALREADY DID THIS. 7. A ball falls straight down through the air under the influence of gravity. There is a retardingforce F on the ball with magnitude given by F = av^2, where "v" is the speed of the ball and "a" isa positive constant. The ball reaches a terminal velocity after a time t. The magnitude of theacceleration and velocity at time t/2 isIncreasing, DecreasingDecreasing. Increasing9.8 m/s^2, IncreasingO 0. DecreasingNo Answerㅋ

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Directions: On the space provided before each number, write T if the statement is true and F if the statement is false. _1. In a pendulum, the restoring force comes from the tension in the string. _2. Vibration is just mechanical oscillation. _3. The wavelength of a transverse wave is equal to the period of its corresponding sine or cosine graph. _4. The "w" in periodic motion refers to angular velocity. 5. Amplitude is unaffected when there is resonance.
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A pendulum on Earth is released from rest at an angular displacement of 6.6 degrees to the right, and is at an angular displacemet of -3.87938 degrees when measured 0.915924 s after it is released. Assume the positive angular displacement direction is to the right. Help on how to format answers: units a. What is the length of the pendulum? The length of the penduum is m.
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Drag each label to the correct location on the equation. Not all labels will be used. The time, 7. in seconds, a pendulum takes to move back and forth once is 2/7 times the square root of the length of the pendulum, L. in feet, divided by the square root of the acceleration due to gravity. 32 feet/second². Enter the correct values in the equation with respect to the motion of the pendulum. 207 T 32 L 882 7.29 0.55 If it takes the pendulum 1.5 seconds to move back and forth once, the length of the pendulum is approximately feet.
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Suppose that during each step, the leg of the student in Example 14.11 swings through a total distance of 2.0 m. At the end of the swing, this foot rests on the ground for 0.2 s before the other leg begins its swing. a. At what speed does this student walk? (Think carefully about how far forward the student moves at each step.) b. The swinging leg reaches its maximum speed at the bottom of its arc. How many times faster is this maximum leg speed (measured with respect to the ground) than the average walking speed? SEE EX 14.11 in ATTACHED PICTURE
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