Gravitational Potential Energy: You and your friend, who weighs the same as you, want to go to the top of the Eiffel Tower. Your friend takes the elevator straight up. You decide to walk up the spiral stairway, taking longer to do so. Compare the gravitational potential energy of you and your friend, after you both reach the top.
A. It is impossible to tell, since the times you both took are unknown.
B. It is impossible to tell, since the distances you both traveled are unknown.
C. Your friend's gravitational potential energy is greater than yours, because he got to the top faster.
D. Both of you have the same amount of gravitational potential energy at the top.
E. Your gravitational potential energy is greater than that of your friend, because you traveled a greater distance in getting to the top.
Answer: D
You might also like to view...
A straight wire is bent into the shape shown. Determine the net magnetic force on the wire when the current I travels in the direction shown in the magnetic field 
.
?
?
A. 2IBL in the ?z direction B. 2IBL in the +z direction C. 4IBL in the +z direction D. 4IBL in the ?z direction E. zero
The practice of science: In what ways does the modern practice of science establish positive feedback (see table 3.2 ) to encourage further discoveries?
Can you identify elements of the historical accounts of Copernicus, Tycho, Kepler, and Galileo that provide an example of positive feedback?
The eyepiece of a compound microscope has a focal length of 2.50 cm and the objective has a focal length of 1.60 cm
The two lenses are separated by 15.0 cm. The microscope is used by a person with normal eyes (near point at 25 cm). What is the angular magnification of the microscope? A) 78 x B) 94 x C) 195 x D) 234 x E) 125 x
How do you account for the fact that a sharp dividing line does not exist between one type of electromagnetic wave and its neighbor?