Physics, 11.10.2019 08:00, pablohc200021
You are kidnapped by political-science majors (who are upset because you told them political science is not a real science). although blindfolded, you can tell the speed of their car (by the whine of the engine), the time of travel (by mentally counting off seconds), and the direction of travel (by turns along the rectangular street system). from these clues, you know that you are taken along the following course: 50 km/h for 2.0 min, turn 90° to the right, 20 km/h for 6.0 min, turn 90° to the right, 30 km/h for 80 s, turn 90° to the left, 50 km/h for 60 s, turn 90° to the right, 10 km/h for 1.0 min, turn 90° to the left, 50 km/h for 30 s. at that point, (a) how far are you from your starting point, and (b) in what direction relative to your initial direction of travel are you? give your answer to (a) in meters, and your answer to (b) as a positive (counterclockwise) or negative (clockwise) angle of magnitude less than 180° from the original direction of motion.
Answers: 2
Physics, 22.06.2019 20:30, nae467
Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600
Answers: 2
You are kidnapped by political-science majors (who are upset because you told them political science...
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