The next few questions refer to the golden great bridge, built on planet tehar in a galaxy far, far away. the bridge-building technology on teacher is not very well developed: the bridge is just a long slab of pure gold with the opposite ends resting on the shores of the river.
in the spring, when the air temperature is 100°c , the length of the bridge is 160.0 m. answer the questions below knowing that the value of α for gold is 1.42 x 10^−5°c^−1. compared to its length in the spring, by what amount delta l winter does the length of the bridge decrease during the teharian winter when the temperature hovers around -150 °c ? and compared to its length in the spring, by what amount delta l summer does the length of the bridge increase during the teharian summer when the temperature hovers around 700°c?

Askydiver weighing 140 lb (including equipment) falls vertically downward from an altitude of 19,000 ft and opens the parachute after 18 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.55|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity v is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. (a) find the speed of the skydiver when the parachute opens. (b) find the distance fallen before the parachute opens. (c) what is the limiting velocity vl after the parachute opens? (d) determine how long the sky diver is in the air after the parachute opens. (e) plot the graph of velocity versus time from the beginning of the fall until the skydiver reaches the ground.

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?