When a laboratory sample of unknown mass is placed on a vertical spring-scale having a force constant (spring constant) of 467 n/m, the system obeys the equation y = (4.4 cm) cos(33.3 s-1 t). what is the mass of this laboratory sample?

therefore, the efficiency is:

Answerthe force between the charges will be  f/9 (one-ninth of force f)explanationcoulomb's law relates the magnitudes  two point charges q₁ and q₂, the distance, r, between the charges, and the electrostatic force, f, between the two charges:     k represents coulomb's constant, k = 8.99×10⁹ n·m²/c².note that if we have r = 3r, then