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When empty, a particular helicopter of mass 3770 kg can accelerate straight upward at a maximum acceleration of 1.30 m/s2. A careless crewman overloads the helicopter so that it is just unable to lift off. What is the mass of the cargo?
For each part of the following, state any assumptions used and show mathmatical dereviation before using values. determine the rotential inertia of a yo-yo about it's center
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 60° C. What is the temperature coefficient of resistivity
A wire 6.10m long with diameter of 2.00mm has a resistance of 0.0280?. Find the resistivity of the material of the wire
An 63 kg weight watcher wishes to climb a mountain to work o? the equivalent of a large piece of chocolate cake rated at 690 kcal (1 kcal = 1000 cal). How high must the person climb
An airline passenger dangles her watch from a string while the jet takes off. The string makes an angle of 25o with respect to the vertical while the aircraft accelerates for takeoff, which takes about 18 seconds. Determine the takeoff speed of the a..
A child sitting 1.06 m from the center of a merry-go-round moves with a speed of 1.35 m/s. Calculate the centripetal acceleration of the child
I am rising upward in a hot air balloon. I am holding my coffee container and i accidentally let go of it when I am leaning out and enjoying the view. Whats the greatst height the container achieved in its flight
A merry-go-round starts from rest and accelerates uniformly over 16.5 s to a final angular velocity of 7.65 rev/min. Find the person's tangential acceleration
A balloon carrying a basket is descending at a constant velocity of 20.0 m/s. how far is it from the basket
There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel up to 10 km. Determine the intensity level of the infrasound
What is the work done by the tension in the cable.assume the roller coaster (h1 = 34 m, h2 = 13 m, h3 = 30) passes point A with a speed of 3.10 m/s. If the average force of friction is equal to one third of its weight, with what speed will it reach..
Water at a gauge pressure of 3.0 atm at street level flows into an office building at the speed of 0.40 m/s by a pipe 5.0 cm in diameter. The pipe tapers down to 2.20 cm in diameter by the top floor, 15 m above, where the faucet has been left open. E..
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