Next, Tarzan decides to use the vine to cross a creek. As he swings across the creek, he clocks 9 m/s as he reaches the middle of the creek (lowest point). What is the mangitude of the tension force in the vine now?

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g