An insurance company hired your group to help investigate an insurance claim following a car accident. In the accident, two cars collided in an intersection – one (mass 1650kg) was traveling north before the collision, while the other (1900kg) was traveling east. As part of your investigation, you need to determine if either driver was violating the posted speed limit before the collision. Each road had a speed limit of 40 miles per hour (17.9m/s). A traffic camera confirms that the car initially traveling north was going a bit under the speed limit at 16m/s. Furthermore, you know that after the collision, the two cars stuck together and slid a total distance of 13m from the point where they collided. The coefficient of kinetic friction between their tires and the road is 0.7.Was the eastbound car exceeding the posted speed limit before the collision?
Answers: 3
Physics, 22.06.2019 11:10, axxpjr12
Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.
Answers: 3
Physics, 22.06.2019 13:30, sukiyoshi10
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)
Answers: 1
Physics, 22.06.2019 15:30, haha81
Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.
Answers: 2
An insurance company hired your group to help investigate an insurance claim following a car acciden...
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