Physics, 28.11.2021 09:20 destinyharris8502
John uses a pulley to lift a 600N object 4 m. It exerts a force of 150N on the rope to lift
the object. How long will the rope have to pull John without considering the friction? With friction? What is the mechanical advantage of
this pulley?
Answers: 1
Physics, 22.06.2019 13:50, Geo777
Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination. at the turning point, how far is the second student from the destination?
Answers: 3
Physics, 22.06.2019 15:50, ksiandua07
An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
Answers: 1
John uses a pulley to lift a 600N object 4 m. It exerts a force of 150N on the rope to lift
the ob...
History, 16.04.2020 17:23
History, 16.04.2020 17:23
History, 16.04.2020 17:23