The alarm at a fire station rings and a 87.5-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 4.10 m). Just before landing, his speed is 1.75 m/s. What is the magnitude of the kinetic frictional force exerted on the fireman as he slides down the pole?
Answers: 1
is mathematically given as
Another question on Physics
Physics, 22.06.2019 03:00
The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f
Answers: 2
Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
Answers: 1
Physics, 22.06.2019 16:50
Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
Answers: 1
Physics, 22.06.2019 19:00
1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)
Answers: 1
You know the right answer?
The alarm at a fire station rings and a 87.5-kg fireman, starting from rest, slides down a pole to t...
Questions
History, 18.10.2020 15:01
Mathematics, 18.10.2020 15:01
Business, 18.10.2020 15:01
Physics, 18.10.2020 15:01
Computers and Technology, 18.10.2020 15:01
English, 18.10.2020 15:01
Computers and Technology, 18.10.2020 15:01
English, 18.10.2020 15:01
History, 18.10.2020 15:01
History, 18.10.2020 15:01
Chemistry, 18.10.2020 15:01
Computers and Technology, 18.10.2020 15:01
Arts, 18.10.2020 15:01
