105 mm-105,000 Jum 25.9 L 25,900ml - 2. A fishtank with inside dimensions of 105

Question

105 mm-105,000 Jum 25.9 L 25,900ml - 2. A fishtank with inside dimensions of 105 cm X 89 cm X 119 cm is filled with water. What is the volume in cm3 of water required? What is the mass in grams of the water required? What is the mass in kilograms? 3. A car travels in a northward direction for a total distance of 512 km. The car completes this trip in 6 hrs. After resting the driver makes the return trip, the return trip only takes 5.5 hours. What is the average speed of the car over the entire trip? 4. A sound wave has a frequency of 1670 Hz. What is the distance between crests or compressions of the wave? (Wavelength) 359 words 8 MacBook Air

Explanation / Answer

Diameter of water tank is l X w X h

                             105 x89 x119

                             1112055 cm3

Therefore 1112055 cm3 water will be required

cm3 =1gram of water

1112055 gram of water

1112.055 Kg of water

Average speed = Distance travelled / Time

= 1024 / 11.5

= 89.043 Km/ hour

Wavelength = wave velocity / frequency

Sound velocity = 343 m/s

= 343 /1670

= 0.2054 m

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