A hoop with a mass of 1.2 kg is rotating about a fixed axis through its center and perpendicular to the plane. It has an angular acceleration of 2.0 rad/s2. A point on the rim has a tangential acceleration of 0.80 m/s2. (a) Find the radius of the hoop. (b) At a certain instant, a point on the rim has a tangential velocity of magnitude 3.4 m/s. What is the magnitude of the tangential velocity 2.0 s later? (c) If all the mass is in the rim of the hoop, find the hoop's Irot.

Me ! a 2 µc charge q1 and a 2 µc charge q2 are 0.3 m from the x-axis. a 4 µc charge q3 is 0.4 m from the y-axis. the distances d13 and d23 are 0.5 m. find the magnitude and direction of the resulting vector r. round your answer to the nearest tenth.

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

The system is released from rest with the cable taut, and the homogeneous cylinder does not slip on the rough incline. determine the angular acceleration of the cylinder and the minimum coeffi cient s of friction for which the cylinder will not slip.