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Veronica can swim 3.0 m/s in still water. While trying to swim directly across a river from west to east, Veronica is pulled by a current flowing southward at 2.0 m/s.
a) What is the magnitude of Veronica's resultant velocity?
b) If Veronica wants to end up exactly across stream from where she began, at what angle to the shore must she swim upstream?
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What do we mean by a uniformly most powerful test? "UMP tests are scarce."Explain.
A 2.0kg iron tea kettle sits on a 1.8kW stove burner. If it takes 5.1min to bring the kettle and the water in it from 33C to the boiling point, how much water is in the kettle?
A parallel-plate air capacitor of area A = 21.9 cm2 and plate separation of d = 3.60 mm is charged by a battery to a voltage of 64.0 V. how much additional charge will flow from the battery
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A concave shaving mirror has a radius of curvature of +39.9 cm. It is positioned so that the (upright) image of a man's face is 1.54 times the size of the face. How far is the mirror from the face
a store sign of mass 4.21 kg is hung by two wires that each make an angle of ? 42.3deg with the ceiling.what is the
A house has a floor area of 102 m2 and an outside wall that has an area of 33 m2. Calculate the magnetic flux that passes through the floor
An explosion breaks an object into two pieces, one of which has 1.5times the mass of the other. how much kinetic energy did each piece acquire
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