age-10 79 50.0 m 150 Holt Physics Problem Workbook Types of Waves Date: Name: Practice Q1. Explain how the motion of the source relative to the motion of the wave differ for transverse and longitudinal waves? le: Com riptive 1 Q2. A cat's purr has a frequency of about 55 Hz. Calculate the period of the cat's purr. Q3. When a DVD player is reading the outside tracks of the DVD, its frequency is about 600 revolutions per minute. Calculate both the frequency and period in hertz and seconds respectively. Q4. A surfer relaxing on a surfboard counts 15 wave crests in the span of 12 seconds. Calculate the frequency and period of the water waves. @Mrs. Brosseau's BinderCopyright @ 50.0 m Physics Universal Wave Equation Date: Name: Practice Q1. A 4.25 m long wave completes a cycle in 1.37 s. Calculate the speed of the wave . oner. Exan ort and de Q2. A sound wave has frequency of 1760 Hz and a wavelength of 19.3 cm. Calculate the speed of the wave. Q3. Practice common calculations by completing the table below. Speed Frequency Wavelength Period 1 = 0.25 m T = 4.00 s f = 14.0 Hz 2 = 1.63 m v = 5.85 m/s T = 0.21 s v = 415 m/s f = 380 Hz Q4. Gamma rays in space travel at the speed of light, c = 3.0 x 108 m/s. Determine the wavelength of a gamma ray of frequency 4.00 x 1020 Hz. Mrs. Brosseau's BinderNAME DATE CLASS ADDITIONAL PRACTICE 1. The world's largest tires have a mass of almost 6000 kg and a diameter of 3.72 m each. Consider an equilateral triangle with sides that are 3.72 m long each. If equal positive charges are placed at the points on either end of the triangle's base, what is the direction of the resultant electric field strength vector at the top vertex? If the magnitude of the electric field strength at the top vertex equals 0.145 N/C, what are the two quantities of charge at the base of the triangle? 2. The largest fountain is found at Fountain Hills, Arizona. Under Ideal conditions, the 8000 kg column of water can reach as high as 190 m. Suppose a 12 nC charge is placed on the ground and another charge of unknown quantity is located 190 m above the first charge. At a point on the ground 120 m from the first charge, the horizontal component of the resultant electric field strength is found to be Ex = 1.60 x 10-2 N/C. Using this information, calculate the unknown quantity of charge. 3. Pontiac Silverdome Stadium, in Detroit, Michigan, is the largest air- supported building in the world. Suppose a charge of 18.0 MC is placed at one end of the stadium and a charge of -12 0 uC is placed at the other end of the stadium. If the electric field halfway between the charges is 22.3 N/C, directed toward the -12 0 MC charge, what is the length of the stadium? 4. In 1897, a Ferris wheel with a diameter of 86.5 m was built in London. The wheel held 10 first-class and 30 second-class cabins, and each cabin was capable of carrying 30 people Consider two cabins positioned exactly opposite each other. Suppose one cabin has an unbalanced charge of 4.8 nC and the other cabin has a charge of 16 nC. At what distance from the 4.8 nC charge along the diameter of the wheel would the strength of the resultant electric field be zero? 5. Suppose three charges of 3.6 MC each are placed at three corners of the Imperial Palace in Beijing, China, which has a length of 960 m and a width of 750 m. What is the strength of the electric field at the fourth corner? 6. The world's largest windows, which are in the Palace of Industry and Technology in Paris, France, have a maximum width of 218 m and a maximum height of 50.0 m Consider a rectangle with these dimensions. If charges are placed at its corners, as shown in the figure below, what is the electric field strength at the center of the rectangle? The value of 9 18 6 4 nC 218 m 9 E 50.0 m TO