Question

This question is a long free-response question. Show your work for each part of the question. Please help, thank you so much!A vertical support rod is fixed at the center of a platform. A light string of length L is attached to the top of the support rod, and the other end of the string is attached to a sphere of mass m, as shown above. The platform rotates with an angular speed that can be varied. When the platform rotates with a constant angular speed ω (omega), the string makes an angle θ (theta) with the rod.(a) The platform rotates with a constant angular speed. Which of the above graphs correctly shows the magnitude of the net force exerted on the sphere as a function of time t ? Briefly justify your answer.(b) Is the magnitude of the tension in the string greater than, less than, or equal to the centripetal force exerted on the sphere? Explain your reasoning.(c) The string is nearly vertical when the sphere’s tangen

Answer 1

Hooke's Law states that the more you deform a spring, the more force it will take to deform it further. Using the example of a common compression spring, the more you compress the spring, the more force it will take to compress it further.

Magnetic Field:

• Magnetic Field is the domain about a drawing material or a exciting energetic charge inside that extrasensory perception of attractiveness acts.

• A magnetic field of currents is a heading field in the neighbourhood of a bait, energetic current, or changeful energetic field at which point attractive forces are apparent. A magnetic field of currents is presented by affecting energetic charges and basic attractive importance of basic atoms guide a fundamental quantity possessions famous as spin.

• Magnetic field and energetic field are two together pertain and are parts of the electromagnetic force, individual of the four fundamental forces of type.

• The magnetic field of currents maybe mathematically interpreted as a heading field. The heading field is a set of many headings that are tense on a gridiron. In this case, each heading points in the route that a compass would point and has a distance weak on the substance of the drawing force.
  

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