Aset of christmas tree lights consists of 60 identical bulbs connected in series. when they are connected to a constant 240 v electricity supply, the bulbs dissipate 2.00 w of electrical power each. in an attempt to improve performance, an amateur electrician decides to remove 10 bulbs and replace them with connections of effectively zero resistance. assuming that the bulbs do not burn out, how much power is dissipated by the total set of bulbs when the modified set is switched on?

22. the effect of threshold braking is to a cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.

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Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.