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An automobile engine slows down from 3600 rpm to 1100 rpm in 2.4 s.. ▼ Part A Calculate its angular acceleration, assumed constant. Express your answer using two significant figures. a = -110 rad/s² Submit Correct Part B. Previous Answers Calculate the total number of revolutions the engine makes in this time. Express your answer as an integer. 5 ΑΣΦΑ N = Submit Request Answer OWC ? revolutions
A merry-go-round accelerates from rest to 0.68 rad/s in 30 s. Part A Assuming the merry-go-round is a uniform disk of radius 8.0 m and mass 3.20x104 kg, calculate the net torque required to accelerate it. Express your answer to two significant figures and include the appropriate units. T- 23000 Nm Submit Previous Answers Request Answer ?
An Atwood machine consists of two masses, m₁ = 64 kg and mg = 75 kg, connected by a massless inelastic cord that passes over a pulley free to rotate The pulley is a solid cylinder of radius R = 0.44 m. and mass 5.0 kg (Hint: The tensions Fra and Frs are not equal.] Part A Submit Request Answer Part B Determine the acceleration of each mass. Express your answer to two significant figures and include the appropriate units. Value % error = Submit What% error would be made it the moment of inertia of the pulley is ignored? Express your answer using two significant figures. 15. ΑΣΦ Provide Feedback Units Request Answer ? MA ? % FTB mB Mouth
A merry-go-round has a mass of 1490 kg and a radius of 7.35 m. Part A How much net work is required to accelerate it from rest to a rotation rate of 1.00 revolution per 7.30 s? Assume it is a solid cylinder. Express your answer using three significant figures and include the appropriate units. HÅ W = Value Submit Request Answer Units ?
What is the angular momentum of a 0.205 kg ball rotating on the end of a thin string in a circle of radius 1.45 m at an angular speed of 10.7 rad/s? Express your answer using three significant figures and include the appropriate units. L= 4.61 HA kgm² S Submit Previous Answers Request Answer
What is the angular momentum of a 2.7-kg uniform cylindrical grinding wheel of radius 29 cm when rotating at 1400 rpm ? Express your answer using three significant figures and include the appropriate units. L= Submit Part B. |T|= HÅ Submit Value Request Answer How much torque is required to stop it in 5.0 s ? Express your answer using three significant figures and include the appropriate units. HA Value Units Request Answer D + ? Units