F15–3. the motor exerts a force of f = (20t 2 ) n on the cable, where t is in seconds. determine the speed of the 25-kg crate when t = 4 s. the coefficients of static and kinetic friction between the crate and the plane are ms = 0.3 and mk = 0.25, respectively

Aflower pot weighing 3 newtons is sitting on a windowsill 30 meters from the ground is the energy of the flower pot potential or kinetic? how many joules is this

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

Which type of wave can travel without a medium