A 39-kg girl standing at rest on slippery (frictionless) ice catches a 1-g ball moving at 10 m/s. Just afterward, the girl is
A) moving at 0.5 m/s.
B) at rest.
C) moving at 2 m/s.
D) moving at 4 m/s.
E) moving at 0.25 m/s.
E
You might also like to view...
A light ray strikes the surface of sapphire (n = 1.77) at an angle of incidence of 
What angle of refraction results?
A. 
B. 
C. 
D. 
E. 
A 22
F capacitor is charged to 100 V. What is the energy stored by the capacitor?
A. 0.22 J B. 0.11 J C. 22 J D. 11 J E. 44 mJ
That brighter Sirius A weighs 3 solar masses, but the white dwarf Sirius B is only about one solar mass implies:
A) that white dwarfs evolve slower than main sequence stars. B) that the collapsed companion transferred mass to Sirius A. C) that there should be a planetary nebula around the Sirius system. D) that Sirius A will be stable three times longer than Sirius B. E) the Sirius A will end up as a black hole, not a white dwarf like its companion.
A wire loop of radius 0.250 m is placed in a uniform magnetic field of magnitude 0.740 T. The field is directed perpendicular to the plane of the loop. If the field reverses its direction, and its magnitude changes to 0.100 T in time 1.06 s, what is the magnitude of the average induced emf in the loop during this time?
a. 156 mV b. 119 mV c. 185 mV d. 741 mV