An elevator suspended by a vertical cable is moving downward but slowing down. The tension in the cable must be
A) equal to the weight of the elevator.
B) less than than the weight of the elevator.
C) greater than the weight of the elevator.
C
You might also like to view...
Charge in an Electric Field: A small 0.050-kg insulating sphere carries a charge of -60 ?C and is hanging by a vertical silk thread from a fixed point in the ceiling. An external uniform vertical electric field is now applied. If the applied electric field has a magnitude of 3000 N/C and is directed downward, what is the tension in the silk thread? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A. 0.19 N B. 0.31 N C. 0.41 N D. 0.52 N E. 0.71 N
How does metal content vary between young disk stars and older halo stars? Why?
What will be an ideal response?
A saturated hydrocarbon that is made up of eight
carbon atoms and eighteen hydrogen atoms is named a) octane. b) butane. c) methane. d) ethane.
One mole of helium gas expands adiabatically from 2 atm pressure to 1 atm pressure. If the original temperature of the gas is 20°C, what is the final temperature of the gas? (g = 1.67)