Activity B (continued from provious page) 6. Apply: What would you expect the forca to be if the distanco was 30 maters? __ __ Use the Gizma to chook your answer. 7. Make a rule: Based on what you have learned write an equation to calculate the force between two objects if the product of their charges is 1.0times 10^-7C Use the Gizmo to test your formula. (Note: Use the variable R for the dislance between the charges.) 8. Summarize: Fill in the blanks. The electrostatic force between lwa objects is proportional to the __ of the distance __ 9. Challenge: Coulomb's law is an equation that relates the electrostatic force between two objects to their distance and charge. In activity A, you found that the electrostatic force objects to two objects is proportional to the product of their charges. Combine that with what you have learned in this activity to complete Coulamb's law below. (Hint: In the equation, k is a constant.)Check your answer with your teacher. F=k(square )/(square ) 10. On your own:Use the Gizmo to find the value of k describe how you found it below. The units of kare newtoncdot meter^2div coulombs^2 . or Ncdot m^2/C^2 Check your answer with your teacher. k=underline ( ) Show your work:

6. To find the force when the distance is 30 meters, we can use the formula for electrostatic force: F = k * (q1 * q2) / R^2, where F is the force, k is the constant, q1 and q2 are the charges, and R is the distance between the charges. Plugging in the given values, we get F = k * (1.0 * 10^-7 C) / (30 m)^2. Using the Gizmo, we can check the answer.<br /><br />7. Based on what we have learned, the equation to calculate the force between two objects with a product of charges equal to 1.0 * 10^-7 C is F = k * (q1 * q2) / R^2, where F is the force, k is the constant, q1 and q2 are the charges, and R is the distance between the charges. We can use the Gizmo to test this formula.<br /><br />8. The electrostatic force between two objects is proportional to the square of the distance between them.<br /><br />9. Combining the information from activity A and this activity, we can complete Coulomb's law as F = k * (q1 * q2) / R^2, where F is the force, k is the constant, q1 and q2 are the charges, and R is the distance between the charges. In this equation, k is a constant.<br /><br />10. Using the Gizmo, we can find the value of k by plugging in the values of the force, charges, and distance into the formula F = k * (q1 * q2) / R^2 and solving for k. The units of k are newton * meter^2 / coulomb^2, or N * m^2 / C^2.