7. Determine which texting driver travels further, if both drivers have a reaction time of 0.5 seconds and decelerate at -8 m/s/s. Driver A, speeding at 32 m/s and distracted for only 2 seconds or Driver B, texting for 4 seconds but
traveling at 16 m/s?

Part f - example: finding two forces (part i) two dimensional dynamics often involves solving for two unknown quantities in two separate equations describing the total force. the block in (figure 1) has a mass m=10kg and is being pulled by a force f on a table with coefficient of static friction îľs=0.3. four forces act on it: the applied force f (directed î¸=30â above the horizontal). the force of gravity fg=mg (directly down, where g=9.8m/s2). the normal force n (directly up). the force of static friction fs (directly left, opposing any potential motion). if we want to find the size of the force necessary to just barely overcome static friction (in which case fs=îľsn), we use the condition that the sum of the forces in both directions must be 0. using some basic trigonometry, we can write this condition out for the forces in both the horizontal and vertical directions, respectively, as: fcosî¸â’îľsn=0 fsinî¸+nâ’mg=0 in order to find the magnitude of force f, we have to solve a system of two equations with both f and the normal force n unknown. use the methods we have learned to find an expression for f in terms of m, g, î¸, and îľs (no n).

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

You have 80 g of 60oc water and 80 g or 10oc water. what is the final temperature when the two are mixed? explain.