A disk of radius 1.6 m and mass 3.8 kg rotates about an axis through its center. A force of 18.4 N is applied tangentially to the edge of the hoop, causing it to rotate counterclockwise. Assuming the disk is initially at rest, after 3 s... a) what is the radial acceleration of a point halfway between the axis and the edge of the disk

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct