QUESTION 1 On a watch, what is the angular velocity (magnitude and direction) of the second hand and the hour hand? Express your answers in rad/s.
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- Define angular velocity.A three-blade wind turbine, which spins perpendicularly to the ground, is set on a pole that is 38 m tall and completes 5 revolutions in one minute. The length of one blade is approximately 4 m long. One particular blade lies parallel to the ground before the turbine started to spin. a) What is the equation that models the height of tip of this blade as a function of time (in seconds)?time of 5 rotations (16.5 s) Time of 1 rotation (3.3 s) Distance from shoulder to elbow (20.32cm) Distance from shoulder to middle of hand (56.99cm) A. What was the average angular acceleration (degrees/s2and rad/s2) of the hand? How do you know?B. What was the average centripetal acceleration (m/s2) of the hand? (Hint: remember, it is going in a circle and acp = v2/r.)
- a) What is the period of rotation of Venus in seconds? (The period of rotation of Venus in hours is 5,832.5 hr.) Answer in seconds (b)What is the angular velocity (in rad/s) of Venus? (Enter the magnitude.) Answer in rad/s (c) Given that Venus has a radius of 6.1 ✕ 106 m at its equator, what is the linear velocity (in m/s) at Venus's surface? (Enter the magnitude of the linear velocity at the equator.) Answer on m/sIn the figure below, the time-varying global orientation of the thigh segment is plotted in radians relative to the right hand horizontal across a running Thigh angle (rad) 5 0.3 0.4 0.5 0.6 Which of the following statements regarding the above figure is incorrect? a. The thigh angular velocity is always positive b. The thigh angular velocity at 0.25 s is positive c. The thigh angular range of motion is approximately 1.8 rad O d. The thigh angular velocity at 0.5 s is negative 0.1 0.2please do part c
- A key lime pie in a 8.50 in8.50 in diameter plate is placed upon a rotating tray. Then, the tray is rotated such that the rim of the pie plate moves through a distance of 233 in.233 in. Express the angular distance that the pie plate has moved through in revolutions, radians, and degrees. what is the angular distance in revelutions? what is the angular distance in radians? If the pie is cut into 1010 equal slices, express the angular size of one slice in radians, as a fraction of ?. what is the angular size =pi x in radians?A student is whirling a ball on a string in a circle with an angular speed of 20 rad/s. Air drag decelerates the ball at a rate of -3 rad/s2. What is the angular speed of the ball after it has spun through an angle of 30 radians? Remember to include units with your answer. A disk is initially at rest. If the disk speeds up uniformly to a speed of 45 rad/s in a time of 15 seconds, what angle does it turn through? Remember to include units with your answer.Please don't provide handwritten solution ...