Arescue helicopter lifts a 72.3-kg person straight up by means of a cable. the person has an upward acceleration of 0.571 m/s2 and is lifted from rest through a distance of 8.41 m. (a) what is the tension in the cable? how much work is done by (b) the tension in the cable and (c) the person's weight? (d) use the work-energy theorem and find the final speed of the person.
Answers: 1
Physics, 22.06.2019 06:00
Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h
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Physics, 22.06.2019 07:30
Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?
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Physics, 22.06.2019 08:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
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Physics, 22.06.2019 13:00
What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud
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Arescue helicopter lifts a 72.3-kg person straight up by means of a cable. the person has an upward...
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