Two blocks with mass m2 > m1 are pulled as shown along rough horizontal surfaces with the same coefficient of friction. Both are pulled at constant speed, but v2 < v1. Which tension force does more work moving the block a distance D along the surface?
2
You might also like to view...
What is the critical angle for light traveling from crown glass (n = 1.52) into water (n = 1.33)?
A) 42° B) 48° C) 53° D) 57° E) 61°
Which of the following is not a hard magnetic material?
a. iron b. cobalt c. nickel d. both b and c
A ten-loop coil having an area of 0.23 m2 and a very large resistance is in a 0.047-T uniform magnetic field oriented so that the maximum flux goes through the coil. The coil is then rotated so that the flux through it goes to zero in 0.34 s
What is the magnitude of the average emf induced in the coil during the 0.34 s? A) 0.0032 V B) 0.00 V C) 0.032 V D) 0.32 V E) 1.0 V
The frictional force of the floor on a large suitcase is least when the suitcase is
a. pushed by a force parallel to the floor. b. dragged by a force parallel to the floor. c. pulled by a force directed at an angle ? above the floor. d. pushed by a force directed at an angle ? into the floor. e. turned on its side and pushed by a force parallel to the floor.