George swings a ball around him, in uniform circular motion.  The circle's radius is r.  George inadvertently releases the string, and the ball goes outward.  He catches the string again, and now the ball goes around him at a new rotation rate, with a new radius r + Δr.  Calculate the new rotation rate (in rev/s). r = 2 m Δr = 0.7 m Original rotation rate = ωi = 2 rev/s The ball's mass is m = 122 grams

A centrifuge in a medical laboratory rotates at an angular speed of 3550 rev/min. When switched off, it rotates through 46.0 revolutions before coming to rest. Find the constant angular acceleration of the centrifuge. rad/s2 Need Help? Read It

A ball travels in uniform circular motion with a Period of 2 seconds. What is the tangential velocity of the object if it is moving in a circle of radius 2 m? 2π m/s m/s 4π m/s 2 m/s 4 m/s

An ultracentrifuge accelerates from rest to 9.97 x 105 rpm in 1.51 min. What is its angular acceleration in radians per second squared? angular acceleration: What is the tangential acceleration of a point 9.10 cm from the axis of rotation? tangential acceleration: radial acceleration: rad/s² What is the radial acceleration in meters per second squared and in multiples of g of this point at full revolutions per minute? radial acceleration in multiples of g: m/s² m/s²

A disk spins at 4.0 revolutions/second. What is its period, in second? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

George swings a ball around him, in uniform circular motion.  The circle's radius is r.  George inadvertently releases the string, and the ball goes outward.  He catches the string again, and now the ball goes around him at a new rotation rate, with a new radius r + Δr.  Calculate the new rotation rate (in rev/s). r = 3.0 m Δr = 1.0 m Original rotation rate = ωi = 1.1 rev/s The ball's mass is m = 160 grams

A thread is wrapped around a cylindrical spool, of radius R = 2.0 cm, whose central axis is fixed on a support. Somebody’s hand pulls the thread off the spool. This causes the spool to rotate. The acceleration of the person’s hand is constant. Starting from rest, it takes 10 seconds for 5.0 meters of thread to be pulled off. What is the angular speed of the spool at time t = 2.0 s?

An object moves uniformly around a circular path of radius 22.0 cm, making one complete revolution every 2.20 s. ONLY ANSWER C PLEASE, I HAVE A & B (a) What is the translational speed of the object?0.628m/s(b) What is the frequency of motion in hertz?0.454Hz(c) What is the angular speed of the object?rad/s

A ball of radius 0.200 m rolls with a constant linear speed of 3.89 m/s along a horizontal table. The ball rolls off the edge and falls a vertical distance of 2.10 m before hitting the floor. What is the angular displacement of the ball while the ball is in the air? 0 = i

A centrifuge in a biochemistry laboratory rotates at an angular speed of 3,650 rev/min, clockwise (when viewed from above). When switched off, it rotates through 48.0 revolutions before coming to rest. Assuming it is constant, what is the magnitude of angular acceleration (in rad/s²)? rad/s² What is the direction of the angular acceleration (again, when viewed from above)? clockwise оо counterclockwise The magnitude is zero.