A block is dragged at constant velocity across a level surface by a force of 6 N. What is the force of friction between the block and the surface?
A) less than 6 N
B) more than 6 N
C) 6 N
D) not enough information
Answer: C
You might also like to view...
A refrigerator removes heat from the freezing compartment at the rate of 20 kJ and ejects 24 kJ into the room per cycle. How much work is required in each cycle?
A. 4 J B. 20 J C. 24 J D. 44 J
In a transformer, the relationship between the primary and secondary currents depends on all of the following quantities except:
A. the number of turns the primary and secondary windings have B. the resistance of the windings C. the voltage in the primary winding D. the properties of the core material
A rope pulls on the lower block in the figure with a tension force of 20 N. The coefficient of kinetic friction between the lower block and the surface is 0.16
The coefficient of kinetic friction between the lower block and the upper block is also 0.16. The pulley has no appreciable mass or friction. What is the acceleration of the 2.0 kg block? A) 4.1 m/s2 B) 5.1 m/s2 C) 8.4 m/s2 D) 9.2 m/s2
Why are eclipsing binaries the rarest of the three types discussed?
What will be an ideal response?