A 1200 kg toy boat is traveling at 13 m/s and strikes a 170 kg floating blow up swan (yup saw this on Lake Conroe over the weekend) at rest. After the collision, the boat travels 7 m/s in the same direction. Find the swan's speed just after the toy boat collides with it. (elastic)

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.

Six pendulums of mass mand length las shown are released from rest at the same angle theta from vertical. rank the pendulums according to the numberof complete cycles of motion each pendulum goes through perminute. a. l= 1m m=2kg b. l= 4m m=1 kg c. l= 2 m m= 2 kg d. l= 1 m m= 4 kg e. l= 2 m m = 4 kg f. l= 4m m = 4kg

Ab+c --> ac+b is the general equation for which one of the following types of chemical reactions? a.) combination b.) single-displacement c.) decomposition d.) double-displacement