Each strip in the tape chart of the chart above is for a time interval of 1 tentick.

1. if the timer makes 50 dots per second, what time
intervals are represented by OA and AB?

2. What is the acceleration between 0 and A in
(i) cm/tentick?
(ii) cm/s per tentick,
(iii) cm/s2?

3.What is the acceleration between A and B?

The roller coaster from problem #1 then tops a second hill at 15.0 m/s, how high is the second hill? 91.5 m 79.2 m 80.0 m 68.5 m

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.