Part C The power in the speaker from Part A is doubled, bringing the sound intensity to 2x 10-6 W/m². This leads to 3= 10 log (2 x 106). Which of the following equations is equivalent to log (2 x 10º)? O log(2) x log (106) O log(2) +log (106) O 2x log (106) O 2+log (100) O log (106) +log (10) O 6 × log(20) Submit Request Answer
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- I ran track in high school. Sometimes spectators would time the races from the stands. Let's say that the spectator is a distance, d, from the starter. The spectator (erroneously) starts their timer when they hear the sound from the starting gun. They should start the timer when they see the smoke from the starting gun.Who can calculate the timing error Δt in terms of d, the speed of sound (vs) and the speed of light (c)? I calculated 6.7 x 10^-7, with speed of sound = 343 m/s and speed of light = c. I just wanted to confirm if I was correct. I used x = x0 + 1/2 (v0 +v)(t).A Moving to another question will save this response. Question 2 If the speed of sound in air at 0 °C is 331 m/s. What will be the speed of sound in air at 50 °C? 299 m/s 142 m/s 331 m/s 360 m/s None of these. AMoving to another question will save this response. ch 45you do hot have a thermometer to measure temp you are able to measures the speed of sound through the air. if you measure the sound to be 349m/s. what is the air temp? V=331.4m/s + (0.606m/s/1°C)T apply this formula and answer with the exact value
- Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 60 degrees at midnight and the high and low temperature during the day are 70 and 50 degrees, respectively. Assuming t is the number of hours since midnight, find an equation for the temperature, D, in terms of t. D(t) =The speed of sound is temperature dependent and can be determined by the formula: v(sound) = 331 + 0.6 T(C), where v is the speed of sound in m/s and T is temperature in degrees C. If a sound wave is determined to have a frequency of 1,000 Hz and a wavelength of 35 cm. a) What is the speed of this wave? b) Use the given formula to determine the temperature of the air? c) Based on your temperature result, how would you categorize the air as WARM or COLD?30 m from an ultrasonic sensor. The total travel time of the ultrasonic wave is 33 ms (milliseconds). What is the speed of sound in these conditions?
- The motion of a body is described by the equation y = 2.10 sin (0.170πt), where t is in s and y is in m. a. Find the frequency (in hertz) b. Find the displacement at t = 2.00 seconds c. Find the displacement at t = 22.5 secondsAt what temperature is the speed of sound in helium (ideal gas, y = 1.67, atomic mass = 4.003 u) the same as its speed in oxygen gas at 9.86 °C? The speed of sound in oxygen at 9.86°C is 322 m/s. Number i UnitsThe warning tag on a lawn mower states that it produces noise at a level of 99.0 dB. What is this in W/m2? W/m2 Additional Materials O Reading
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