Two point charges (q1 = -4.1μc and q2 = 7.8 μc) are fixed along the x-axis, separated by a distance d = 9.5 cm. point p is located at (x, y) = (d, d). be sure to use a vector approach to answer these problems. it also limit the number of calculations since sometimes you can neglect one of the charge's effects due to its location relative to the point in question.

The starship enterprise is caught in a time warp and spock is forced to use the primitive techniques of the 20th century to determine the specific heat capacity of an unknown mineral. the 125-g sample was heated to 96.3°c and placed into a calorimeter containing 85.9 g of water at 20.0°c. the heat capacity of the calorimeter was 14.2 j/k. the final temperature in the calorimeter was 24.5°c. what is the specific heat capacity (in j/g°c) of the mineral? enter to 4 decimal places.