I need help with these question from physics. I decided to take on an extra practice worksheet to study but I'm stuck. Please solve and explain the questions below. Everything is given in the attachments, thanks!!

10. A oating leaf oscillates up and down two complete cycles in one second as a water wave passes by. The wave's wavelength is 10 meters. What is the wave's speed? (A) 2 m/s (B) 40 m/s (C) 10 m/s (D) 20 m/s A skipper on a boat notices wave crests passing the anchor chain every 5 seconds. The skipper estimates the distance between crests is 15 m. What is the speed of the water waves? (A) 5 m/s (B) 3 m/s (C) 15 m/s (D) Not enough information given The higher the frequency of a wave (A) The smaller its speed. (B) The shorter its wavelength. (C) The greater its amplitude. (D) The longer its period. PART B: WRITTEN RESPONSE l. A water wave has a frequency of 2 hertz and a wavelength of 5 meters. Calculate its speed. (Answer is 10 m/sec) A wave has a speed of 50 m/sec and a frequency of 10 Hz. Calculate its wavelength. (AnSWer is 5 m) A wave has a speed of 30 m/ sec and a wavelength of 3 meters. Calculate its frequency. (Answer is 10 Hz) A wave has a period of 2 seconds and a wavelength of 4 meters. Calculate its frequency and speed. (Answer is frequency = 0.5 Hz; speed = 2 m/sec) Note: Recall that the frequency of a wave equals l/period and the period of a wave equals l/frequency. A sound wave travels at 330 m/sec and has a wavelength of 2 meters. Calculate its frequency and period. (Answer is frequency = 165 Hz; period = 0.006 sec) The frequency of wave A is 250 hertz and the wavelength is 30 centimeters. The frequency of wave B is 260 hertz and the wavelength is 25 centimeters. Which is the faster wave? (Answer is A's speed is 75 m/sec, and B's speed is 65 m/sec, so A is faster.) The period of a wave is equal to the time it takes for one wavelength to pass by a fixed point. You stand on a pier watching water waves and see 10 wavelengths pass by in a time of 40 seconds. a. What is the period of the water waves? (Answer is 4 sec) b. What is the frequency of the water waves? (Answer is 0.25 Hz) c. Ifthe wavelength is 3 meters, what is the wave speed? (Answer is 0.75 m/sec) 10. 11. 12. 13. 14. An air mattress oating on a lake bobs up and down 45 times in 5.0 minutes. Calculate the speed of the water waves produced if the distance between their crests is 4.0 m. 4 A student was able to generate six full waves on a 15.0 m slinky. If a single pulse could move up and down the slinky in 1.8 s, what would be the student's hand frequency to achieve the six wavelengths? Answer is 3.3 Hz While anchored off in boat one day you notice waves bobbing the nose of the boat upward every 6 seconds. When you look you notice that your boat, a 5.0 m craft, snugly ts from crest to crest of the wave. How fast are the waves moving? Answer is 0.83 m/s A 1.00 X103 Hz wave travels with a speed of 50.0 m/s along a wire. How far apart are the crests? Answer is 0.05 m A wave on a rope has a speed of 12 m/s. If the wavelength is 230 cm, determine the equency. Answer is 52 Hz While sitting on the wharf one day, a sherman notices that a buoy bobs up and down six times every ten seconds with the approaching wave crests. He estimates that the waves are about 1 fathom (say 1.8 metres) long. How fast are the waves moving? Answer is 1.1 m/s In the picture below the wave generator vibrates through 24 complete cycles in 1.0 minute. The water wave thus created has a wavelength of 1.5 m. If the disturbance takes 12.1 s to travel the length of the tank, how long is the tank? Answer is 7.3 m EXAMPLE 1: If you attach one end of a slinky spring to a wall and hold the other end in your hand you can create a traverse wave with side to side movements of your hand. If you do this and produce a 0.70m long wave with a frequency of 3.0 Hz then what is the speed of the wave on the spring? EXAMPLE 2: Twelve waves are observed to pass by a wharf in a time of 10 seconds. If the wavelength is approximately 1.6 m then what is the speed of the waves? EXAMPLE 3: The center of the boat shown in the diagram is 28 m from the beacon on the buoy. The buoy rocks up and down 45 times in one minute. That is the speed of the waves? PART A: MULTIPLE CHOICE 1. Wave motion in a medium transfers (A) Both mass and energy (B) Energy, only (C) Mass, only (D) Neither mass nor energy 2. Assuming that the speed of a wave stays the same, what must happen for the frequency of the wave to increase? (A) The amplitude must decrease. (B) The wavelength must decrease. . (C) The amplitude must increase. (D) The wavelength must increase 3. As the frequency of a wave increases, the period of that wave (A) Decreases (B) Increases (C) Not enough information given (D) Remains the same 4. A wave traveling at 5.0 x 104 meters per second has wavelength of 2.5 x 10I meters. What is the equency of the wave? (A) 5.0 x 10-4 Hz (B) 1.25 x106Hz (C) 2.0 x 103 Hz (D) 5.0 x 103 Hz 5. A periodic wave in a rope has a wavelength of 0.50 m. Two complete waves pass a knot on the rope in 2.0 s. What is the speed of the wave? (A) 0.25 m/s (B) 0.50 m/s (C) 1.0 m/s (D) 2.0 m/ 6. The velocity of a particular wave is 23.8 m/s. Find the wavelength of this particular wave if the frequency is 11.0 Hz. (A) 0.462 m (B) 262 m (C) 2.16 m (D) 2.62 m 7. The speed of sound in medium depends upon (A) Amplitude (B) Frequency (C) Properties of the medium (D) Wavelength