Two friends are doing a sound experiment: Harry drops a ringing tuning fork off the edge of a cliff. Ron stands at the base and records the frequency of the sound. Ron makes a graph of the frequency he observes as a function of time. Which of the following graphs best represents the frequency which Ron measures? Explain why. Graph 1 Graph 2 Time Time Graph 3 Graph 4 Time Time Frequency Frequency

An object moves 60.0 m [E 75.0° N] and then 50.0 m [E 45.0° S].a. Determine the object’s total displacement using graphing scaled diagram.b. Determine the object’s total displacement using component methodc. Determine the object’s total displacement using sine and cosine law.

Report Sheet Data: Uniform and Accelerated Motion Part 1: Uniform Motion Time (s) Distance (cm) .a 20 40 κάπως .3 .7 1 1.1 60 80 100 120 Include a file called uniform motion.cmbl showing a graph of distance as a function of time. Equation of motion, d(t), assuming d = do + vt

12. Acceleration is defined as the change in velocity with respect to time. a. True b. False 13. Among the units that acceleration has in the metric system or international system, is the unit of meters over seconds a. True b. False 14. The three fundamental quantities measured by any measurement system are length, mass, and density a. True b. False

10. The speed of light traveling through air is 3.0×10® m/s, while the speed of sound traveling through air is 3.4×10² m/s. а. If a bolt of lightning strikes 5.5 km away, how much time does it take the flash of lightning to reach you?

Consider the motion described by the figure below. y, m 6 4 N पीजी 3 5 15 (a) Find the displacement at t = 11.5 s 1.240m (b) Find the displacement at t = 13.3 s 1.426 m (c) Find the displacement at t = 15.8 s 1.679m x t, s

M9

Sound travels about 340m/s. The function d(t)=340t gives the distance d(t), in meters, that sound travels in t seconds. How far does sound travel in 34 s? D(34)= blank meters

As a freshly graduated student from WCCI, you are aiming to become a safety engineer for Bolliger and Mabillard (B&M) so that you can help create rollercoasters for Canada's Wonderland. For many roller coasters, it is important that the rides do not come to a complete stop abruptly at the end of a ride (or else bones will break!). The final section of the rollercoaster has the cart (1.5 tons) starting at the final peak with a height of 140 metres (assume the cart starts at rest). The final section (3-4) of the ride is designed to come to a stop using a material with a coefficient of friction of 0.668. The final section is completely flat and is 393.7 feet long. The minimum time required for a ride to come to a stop safely is 6 seconds. a) What is the minimum height required for the ride to come to a stop safely? b) What is the power generated by the braking system of the ride? A: Pictorial Representation Sketch-showing events, coordinate system, label givens & unknowns, conversions,…