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A wildlife researcher is tracking a flock of geese. The geese fly 4.5 km due west, then turn toward the north by 45 degrees and fly another 3.5 km. How far west are they of their initial position? What is the magnitude of their displacement?
A spaceship of proper length 306 m takes 0.75 µs to pass an Earth observer. Determine the speed of this spaceship as measured by the Earth observer.
A dentist's chair with a patient in it weighs 2260 N. The output plunger of a hydraulic system begins to lift the chair when the dentist's foot applies a force of62 N to the input piston. Neglect any height difference between the plunger and the pist..
In outer space a rock of mass 8 kg is acted on by a constant net force N during a 5 s time interval. What was the rock's velocity at the beginning of the time interval
A rectangular loop of wire carrying a 4.0 Amp current is located in a magnetic field of 0.60 T. Evaluate what is the area of this loop
Each grid in the diagram below measures 2 cm in the horizontal direction and 10 cm in the vertical direction. What are the x and y components of the vector shown by the blue arrow in the diagram?
The nucleus of a 125Xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. It has 54 protons and charge q =+54e. What is the proton's acceleration
A string on a guitar is stretched between two points 30 centimeter apart with a tension of 100 Newton. The mass/length of the string is 0.00300 kg/m. Find the velocity of wave propagation on the string
An earth satellite moves in a circular orbit with an orbital speed of 5800m/s. Find the radial acceleration of the satellite in its orbit
a uniform electric field of magnitude 230 vm is directed in the positive x direction. a 11.0 microc charge moves from
What is the Acceleration of an object moving on a circular track
Calculate the ratio of the drag force on a jet flying at 899km/h at an altitude of 7.8 km to the drag force on a prop-driventransport flying at half that speed and altitude. The density ofair is 0.51 kg/m3 at 7.8 km and 0.73 kg/m3 at3.9 km.
A 2.0kg wood block is launched up a wooden ramp that is inclined at a 27? angle. What speed does it have when it slides back down to its starting point
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