The radii of the circles I, I0, and T give an estimate of the error in your experimental values for each of the horizontal ranges. Using this estimate of uncertainty, what is the fractional uncertainty in each distance measurement? How do these uncertainties compare with the percent differences between the initial and final values of the kinetic energy, between the initial and final values of the x-component of the total momentum, and between the final y-components of the two balls?

Apositive rod is placed to the left of sphere a, and the spheres are separated. which best describes the spheres? sphere a is negative and sphere b is positive because protons from sphere a are attracted to the rod and move to sphere b. sphere a is negative and sphere b is positive because electrons from sphere b are attracted to the rod and move to sphere a. sphere a is positive and sphere b is negative because electrons from the rod move to sphere b and protons then move to sphere a. sphere a is positive and sphere b is negative because protons move from sphere b to the rod and also to sphere a.

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.