Physics, 04.02.2022 08:50, UnusualKc2358
7. A drum corps can be heard practicing at a distance of 1.6 km (about 1 mile) from the field. What is the
time delay between the drumstick hitting the drum and the sound heard by an individual 1.6 km away?
(Assume the speed of sound in air to be 340 m/s.)
1 km - 1000m convert km to meters then find out the time
Answers: 3
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Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b. refraction c. diffraction d. interference
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What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th
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Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)
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7. A drum corps can be heard practicing at a distance of 1.6 km (about 1 mile) from the field. What...
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