A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.123 rad/s2. After making 2870 revolutions, its angular speed is 136 rad/s. (a) What is the initial angular velocity of the turbine? (b) How much time elapses while the turbine is speeding up? (a) Number i (b) Number i Units Units +

The drive propeller of a ship starts from rest and accelerates at 2.55 x 10-3 rad/s² for 2.35 x 103 s. For the next 1.68 x 10³ s the propeller rotates at a constant angular speed. Then it decelerates at 2.77 x 10-3 rad/s2 until it slows (without reversing direction) to an angular speed of 2.23 rad/s. Find the total angular displacement of the propeller. Number i Units

A disk, initially rotating at 134 rad/s, is slowed down with a constant angular acceleration of magnitude 2.94 rad/s?. (a) How much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate during that time? (a) Number i Units (b) Number i Units

A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.149 rad/s2. After making 2870 revolutions, its angular speed is 151 rad/s. (a) What is the initial angular velocity of the turbine? (b) How much time elapses while the turbine is speeding up?(a) Number  Units                                                            (b) Number  Units

A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.107 rad/s². After making 2870 revolutions, its angular speed is 130 rad/s. (a) What is the initial angular velocity of the turbine? (b) How much time elapses while the turbine is speeding up? (a) Number i 129.848 Units rad/s (b) Number i 1.327 Units S

A merry-go-round rotates from rest with an angular acceleration of 1.88 rad/s?. How long does it take to rotate through (a) the first 3.24 rev and (b) the next 3.24 rev? (a) Number i Units (b) Number i Units

A person is riding a bicycle, and its wheels have an angular velocity of 23.3 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 13.3 revolutions. (a) How much time does it take for the bike to come to rest? (b) What is the anguar acceleration (in rad/s²) of each wheel? (a) Number i (b) Number i Units Units <