A barrel (mass mLoad) is attached to a massless rope, which is attached to a hook (mass mHook), which is attached to the massless cable of a crane. The cable is accelerating up with an acceleration a. What is the tension of the rope?Choices:1. (mHook+mLoad)·(g-a)2. mHook·g+mLoad·a3. mLoad·g+mLoad·a4. mHook·(g-a)5. mLoad·a6. (mHook+mLoad)·(g+a)7. mLoad·g8. mLoad·g+mHook·a

Ibelieve the answer is d. densityhope my answer has you : )

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 !

How are period and frequency related to each other? dperiod is the reciprocal of frequency.

The answer is b. all other properties are crucial.