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QUESTION 8 Calculate the moment of inertia of a skater assuming the following model. The skater...
QUESTION 5 A figure skater is spinning with an angular velocity of Il rad/s. She then...
QUESTION 5 A figure skater is spinning with an angular velocity of Il rad/s. She then comes to a stop over a brief period of time. During this time, her angular displacement is 5.9 rad. Determine her average angular acceleration, in SI units, with 3 or more significant figures QUESTION 6 Suppose you exert a force of 171 N tangential to a 0.26 m radius 83 kg grindstone (a solid disk). What is the angular acceleration if there is an...
QUESTION 1 Determine the angular velocity of the second hand, in degree/second, of a mechanical clock...
QUESTION 1 Determine the angular velocity of the second hand, in degree/second, of a mechanical clock QUESTION 2 What is the angular velocity in Sl units of the hour hand of a mechanical clock? 1.74 x 10-3 radis 727 x 10-5 radis 0.105 radis 1 45 x 10-radis QUESTION 3 At its peak a tornado is 549 m in diameter and carries 253 MPH winds. What is its angular velocity in Sl units? Express your answer with 3 or more...
Calculate the moment of inertia for each scenario: (a) An 80.0 kg skater is approximated as...
Calculate the moment of inertia for each scenario: (a) An 80.0 kg skater is approximated as a cylinder with a 0.140 m radius. (b) The skater extends both her arms, each of which is approximated as a 4.00 kg rod with length 0.850 m rotated about its end. (c) Calculate the angular velocity of the skater during scenario (b) if her angular velocity during scenario (a) is 6.75 rad/s.
Calculate the moment of inertia (in kg·m2) of a skater given the following information. (a) The...
Calculate the moment of inertia (in kg·m2) of a skater given the following information. (a) The 64.0 kg skater is approximated as a cylinder that has a 0.130 m radius. --- kg·m2 (b) The skater with arms extended is approximately a cylinder that is 57.0 kg, has a 0.130 m radius, and has two 0.950 m long arms which are 3.50 kg each and extend straight out from the cylinder like rods rotated about their ends. ---- kg·m2
Suppose we want to calculate the moment of inertia of a 67 kg skater, relative to...
Suppose we want to calculate the
moment of inertia of a 67 kg skater, relative to a vertical axis
through their center of mass.
Part (a) First calculate the
moment of inertia (in kg⋅m2) when the skater has their
arms pulled inward by assuming they are cylinder of radius 0.11 m.
Part
(b) Now calculate the moment of inertia of the skater (in
kg⋅m2) with their arms extended by assuming that each
arm is 5% of the mass of their...
4. Suppose we want to calculate the moment of inertia of a 67 kg skater, relative...
4. Suppose we want to calculate the moment of inertia of a 67 kg skater, relative to a vertical axis through their center of mass. a. First calculate the moment of inertia (in kg.m2) when the skater has their arms pulled inward by assuming they are cylinder of radius 0.125 m. b. Now calculate the moment of inertia of the skater (in kg.m2) with their arms extended by assuming that each arm is 5% of the mass of their body....
What is the angular momentum of a figure skater spinning at 2.8 rev/s with arms in close to her body
Part A What is the angular momentum of a figure skater spinning at 2.8 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.5 m. a radius of 15 cm. and a mass of 48 kg ? Express your answer using two significant figures. Part B How much torque (in magnitude) is required to slow her to a stop in 4.8 s. assuming she does not move her arms? Express your answer using two...
Review A disk of mass M and radius R has a hole of radius centered on the axis. Part A Calculate the moment of inertia...
Review A disk of mass M and radius R has a hole of radius centered on the axis. Part A Calculate the moment of inertia of the disk. Express your answer in terms of the variables M, R, and T. VALD O2 ? MR2 mR 22 Submit Previous Answers Request Answer Part B A 5.0-cm-diameter disk with a 3.0-cm-diameter hole rolls down a 55-cm-long, 21 ° ramp. What is its speed at the bottom? Express your answer to two significant...
QUESTION 5 Assuming bicycle tires are perfectly flexible and support the weight of bicycle and rider...
QUESTION 5 Assuming bicycle tires are perfectly flexible and support the weight of bicycle and rider by pressure alone, calculate the total area of the tires in contact with the ground. The bicycle plus rider has a mass of 70 kg, and the gauge pressure in the tires is 5.4 105 Pa Express your answer in cm2 with 3 or more significant figures. QUESTION 6 How tall must a water-filed manometer be to measure blood pressures as high as 206...
The outstretched hands and arms of a figure skater preparing for a spin can be considered...
The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center (Figure 1). When his hands and arms are brought in and wrapped around his body to execute the spin, the hands and arms can be considered a thin-walled hollow cylinder. His hands and arms have a combined mass 8.0 kg . When outstretched, they span 1.9 m ; when wrapped, they form a cylinder...
QUESTION 5 A figure skater is spinning with an angular velocity of Il rad/s. She then comes to a stop over a brief period of time. During this time, her angular displacement is 5.9 rad. Determine her average angular acceleration, in SI units, with 3 or more significant figures QUESTION 6 Suppose you exert a force of 171 N tangential to a 0.26 m radius 83 kg grindstone (a solid disk). What is the angular acceleration if there is an...
QUESTION 1 Determine the angular velocity of the second hand, in degree/second, of a mechanical clock QUESTION 2 What is the angular velocity in Sl units of the hour hand of a mechanical clock? 1.74 x 10-3 radis 727 x 10-5 radis 0.105 radis 1 45 x 10-radis QUESTION 3 At its peak a tornado is 549 m in diameter and carries 253 MPH winds. What is its angular velocity in Sl units? Express your answer with 3 or more...
Calculate the moment of inertia for each scenario: (a) An 80.0 kg skater is approximated as a cylinder with a 0.140 m radius. (b) The skater extends both her arms, each of which is approximated as a 4.00 kg rod with length 0.850 m rotated about its end. (c) Calculate the angular velocity of the skater during scenario (b) if her angular velocity during scenario (a) is 6.75 rad/s.
Suppose we want to calculate the
moment of inertia of a 67 kg skater, relative to a vertical axis
through their center of mass.
Part (a) First calculate the
moment of inertia (in kg⋅m2) when the skater has their
arms pulled inward by assuming they are cylinder of radius 0.11 m.
Part
(b) Now calculate the moment of inertia of the skater (in
kg⋅m2) with their arms extended by assuming that each
arm is 5% of the mass of their...
4. Suppose we want to calculate the moment of inertia of a 67 kg skater, relative to a vertical axis through their center of mass. a. First calculate the moment of inertia (in kg.m2) when the skater has their arms pulled inward by assuming they are cylinder of radius 0.125 m. b. Now calculate the moment of inertia of the skater (in kg.m2) with their arms extended by assuming that each arm is 5% of the mass of their body....
Review A disk of mass M and radius R has a hole of radius centered on the axis. Part A Calculate the moment of inertia of the disk. Express your answer in terms of the variables M, R, and T. VALD O2 ? MR2 mR 22 Submit Previous Answers Request Answer Part B A 5.0-cm-diameter disk with a 3.0-cm-diameter hole rolls down a 55-cm-long, 21 ° ramp. What is its speed at the bottom? Express your answer to two significant...
QUESTION 5 Assuming bicycle tires are perfectly flexible and support the weight of bicycle and rider by pressure alone, calculate the total area of the tires in contact with the ground. The bicycle plus rider has a mass of 70 kg, and the gauge pressure in the tires is 5.4 105 Pa Express your answer in cm2 with 3 or more significant figures. QUESTION 6 How tall must a water-filed manometer be to measure blood pressures as high as 206...
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