Superman twirls a 0.1 kg hammer tied to the end of a 0.6 m rope with negligible mass
horizontally about his head. the hammer makes 3 revolutions every second. the
tension (newtons) in the rope is approximately

21.3 Newtons

Explanation:

Let be the time period of hammer.

Let be the length of the rope.

Let be the speed of hammer.

Given,

Since speed of hammer is the ratio of distance travelled in one cycle and frequency,

Let be the tension in rope.

Since the tension in the rope is balancing the centripetal force,

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !

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