- 5) A flywheel whose angular acceleration is constant and equal to 2.50rad/s^2 rotates through an angle of 100 rad in 5 .00 s. What was the angular velocity of the flywheel at the beginning of the 5.00 s interval? 13.75rad/s
- b) How do you think the index of refraction would compare to a diamond. Would the index be higher or lower than diamond? Justify your answer. (3 marks)
- Classify "temperature ". Choose all that apply. ordinal ratio quantitative nominal qualitative discrete interval continuous
- The physics of interference and a student experiment. A student is measuring the wavelength of a narrow , monochromatic light source The double slit has a separation of 0.15 mm. A second student places markers on a screen 2 .0 m in front of the slits at the positions of successive dark bands in the patterns. The student finds that the dark bands are 0.56 cm apart. a. The student has met two important conditions for interference to occur What are they? b. Calculate the wavelength of the light source. c. Calculate the spacing of the dark bands if a source of wavelength 6000 nm were used. (A 147:nm@#148 ; is a nanometre, or 10^-9m. d. If a student wants the spaces between the dark bands in an interference pattern to be wider apart, should the spacing between the slits increase or decrease?
- 4) An electric motor is turned off, and its angular velocity decreases uniformly from 900rev/min to 400rev/min in 5.00 s a) Find the angular acceleration in rev/s^2 and the number of revolutions made by the motor in the 5 .00 s interval. b)How many more seconds are required for the motor to come to rest if the angular acceleration remains constant at the value calculated in part (a)? -1.67rev/s/s 54 rev, 3.98s more
