Q1. Discuss the results with respect to the aims of experiment rolling ball part velocity measurements. How does the measurement of the diameter of the ball obtained using the photo gates compared with those obtained using the ruler and callipers? Are the errors from the actual measurement within the calculated uncertainty? What sources contributed to the error in the measurement obtained using the photo gates? Remark on what physical effects may have adversely affected the measurements.

Q2. Josh has begun to exhibit deficiencies in language, interpersonal skills, affective behaviour, and intellectual functioning. Most of his symptoms were evident before he was three, and his parents report an increased amount of self-stimulating behaviour. What has josh been diagnosed with?