1. A block is dragged along a table and experiences a frictional force, f, that opposes its movement. The force exerted on the block by the table is
2. If L, M, and T denote the dimensions of length, mass, and time, respectively, what are the dimensions of impulse?
3. The Space Shuttle orbits 300 km above Earth’s surface; Earth’s radius is 6,400 km. What is the gravitational acceleration experienced by the Space Shuttle?
4. Which of the following conditions are necessary for an object to be in static equilibrium? I. The vector sum of all torques on the object must equal zero. II. The vector sum of all forces on the object must equal zero. III. The sum of the object’s potential and kinetic energies must be zero.
5. Which of the following would increase the capacitance of a parallel-plate capacitor?
