Electrostatics (Advanced)

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Q. A wheel rotates with an angular velocity of 4 rad/s. What is its angular momentum if its moment of inertia is 2 kg·m²?
  • A. 4 kg·m²/s
  • B. 8 kg·m²/s
  • C. 2 kg·m²/s
  • D. 16 kg·m²/s
Q. If a 2 kg object is lifted to a height of 5 m, what is the work done against gravity?
  • A. 10 J
  • B. 20 J
  • C. 30 J
  • D. 40 J
Q. What is the acceleration of a 3 kg object subjected to a net force of 12 N?
  • A. 2 m/s²
  • B. 3 m/s²
  • C. 4 m/s²
  • D. 5 m/s²
Q. What is the centripetal force required to keep a 2 kg object moving in a circle of radius 3 m at a speed of 4 m/s?
  • A. 10.67 N
  • B. 8 N
  • C. 6 N
  • D. 12 N
Q. What is the kinetic energy of a 4 kg object moving at 3 m/s?
  • A. 6 J
  • B. 12 J
  • C. 18 J
  • D. 24 J
Q. What is the net force acting on a 5 kg object accelerating at 2 m/s²?
  • A. 5 N
  • B. 10 N
  • C. 15 N
  • D. 20 N
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