Afan of 45 kg has an unbalance that creates a harmonic force. a spring-damper system is designed to minimize the force transmitted to the base of the fan. a damper is used with a damping ratio of ζ=0.2 (not c). a) calculate the required spring stiffness

What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr

During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.

Based on its type of chemical bond, which of the following has the highest boiling point? potassium chloride ethyl alcohol water ammonia