What is the magnitude of the charge?

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SUMMARY

The magnitude of the charge on each of the two 1.0g beads, which are placed 50cm apart and accelerate at 150m/s², can be calculated using Newton's second law (F = ma) and Coulomb's law (F = kQQ / r²). The force acting on each bead is derived from its individual mass of 1.0g, not the combined mass of 2.0g. Therefore, the charge can be determined by rearranging the equations to isolate Q, leading to a definitive calculation of the charge on each bead.

PREREQUISITES
  • Understanding of Newton's second law (F = ma)
  • Familiarity with Coulomb's law (F = kQQ / r²)
  • Basic knowledge of electric charge and forces
  • Ability to perform unit conversions (grams to kilograms)
NEXT STEPS
  • Calculate the charge using the derived equations from the discussion
  • Explore the implications of charge interactions in electrostatics
  • Study the effects of distance on electrostatic force
  • Learn about the constants involved in Coulomb's law, specifically the value of k
USEFUL FOR

Physics students, electrical engineers, and anyone interested in understanding electrostatic forces and charge calculations.

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Two 1.0g beads are charged equally and placed 50cm apart. When released, they begin to accelerate at 150m/s2. What is the magnitude of the charge on each bead?

The equations I used:

F = ma
F = kQQ / r2

I was just wondering about the mass. Do I have to use the total mass (2.0g) for both beads or just the 1.0g?
 
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shashaeee said:
Two 1.0g beads are charged equally and placed 50cm apart. When released, they begin to accelerate at 150m/s2. What is the magnitude of the charge on each bead?

The equations I used:

F = ma
F = kQQ / r2

I was just wondering about the mass. Do I have to use the total mass (2.0g) for both beads or just the 1.0g?

have a careful think about what object(s) the force(s) act on and the mass of the object(s).
 

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