Physics, 30.06.2019 04:00 roygbiv1233
Part a: if the coefficient of kinetic friction between tires and dry pavement is 0.81, what is the shortest distance in which you can stop an automobile by locking the brakes when traveling at 30.6 m/s? part b: on wet pavement, the coefficient of kinetic friction may be only 0.25. how fast should you drive on wet pavement in order to be able to stop in the same distance as in part a? (note: locking the brakes is not the safest way to stop.)
Answers: 3
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 22.06.2019 04:30
Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.
Answers: 1
Physics, 22.06.2019 05:10
A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm
Answers: 2
Physics, 22.06.2019 06:30
Which one of the following research methods can show cause and effect
Answers: 1
Part a: if the coefficient of kinetic friction between tires and dry pavement is 0.81, what is the...
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