Graphical Analysis: The graph in the figure shows the position of an object as a function of time. The letters H-L represent particular moments of time.
(a) At which moment in time is the speed of the object the greatest?(b) At which moment in time is the speed of the object equal to zero?
Fill in the blank(s) with the appropriate word(s).
(a) J (b) I
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A flat coil is in a uniform magnetic field. The magnetic flux through the coil is greatest when the plane of its area is
A) parallel to the magnetic field. B) at 45° with the magnetic field. C) perpendicular to the magnetic field.
A calorie is about:
A. 0.24 J B. 8.3 J C. 250 J D. 4.2 J E. 4200 J
A car drives over a hilltop that has a radius of curvature 120 m at the top of the hill. At what speed would the car be traveling when it tires just barely lose contact with the road when the car is at the top of the hill?
A) 45.5 m/s B) 41.8 m/s C) 34.3 m/s D) 22.2 m/s E) 27.6 m/s
A convenient method to write very large numbers is to use scientific notation
a. True b. False Indicate whether the statement is true or false