Readings on a line of differential levels are taken to the nearest 0.001 ft. For what maximum distance can the Earth’s curvature and refraction be neglected?

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c