The rotating parts of a front wheel assembly of a car have a total mass of 35 kg and are measured to be out of balance. the unbalance can be corrected by attaching a 150 g weight to the 375 mm diameter wheel rim. the tire has a diameter of 700 mm. the car springs have a modulus of 50 n/mm and the tire has a modulus of 600 n/mm for small deflection. if the correction is not made, at what car speed will resonant vibration of the wheel occur

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.)

How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)