Question 1 (1 point) A taut string with unknown mass, 61.8 cm long, has a tension force of 21.6 N, and produces a wave with speed 124 m/s when plucked. Calculate the mass of the string in grams with single precision. Your Answer: Answer Question 2 (1 point) A sound wave has a wavelength of 2.7 metres. Calculate the frequency in Hz if the speed of sound is 321 metres per second. Express your result with a single digit of precision. Your Answer: Answer Question 3 (1 point) A wave is described by the formula x(t) = (0.23 m) cos( 1,946t- 632x ) Assuming the wave number, k, and angular frequency, w, are in SI units, calculate the speed of the wave in m/s with a single digit precision. Hint: remember that v = fx Your Answer: Answer Question 4 (1 point) A wave is described by the formula x(t) = (0.23 m) cos( 201.5t- 33.8x ) Assuming the wave number, k, and angular frequency, w, are in SI units, calculate the speed of the wave in m/s with one digit precision.Question 5 (1 point) Calculate the speed of a wave in m/s along a taut string with tension 14.1 Newtons and a mass per unit length of 6.3 grams per metre. Use two digits of precision in your answer. Your Answer: Answer Question 6 (1 point) A sound wave has a wavelength of 4.06 metres. Calculate the frequency in Hz if the speed of sound is 310 metres per second. Use two digits of precision for your answer. Your Answer: Answer Question 7 (1 point) Calculate the displacement y (in metres) for the wave described by the equation y(x,t) = (0.12 m) sin (245x-124t) at time 1.4 seconds and position 1.3 metres. You can assume that all values are in SI units in the equation. Use two digits of precision in your answer. Your Answer: Answer Question 8 (1 point) Suppose an intensity 146 mW/mlands on a detector of area 5.7 cm . Calculate the energy in millijoules collected at the detector, if the intensity falls on it for 49.0 seconds. Express your result with a single digit of precision. Hint: Calculate the power generated by the detector and be careful with unit conversions! Your Answer:Question 9 (1 point) A spherical power source of 145 watts is 6.6 metres from a detector of area 5.6 cm2. Find the power at the detector, in milliwatts, with one digit of precision. Hint find the in tensity of the wave at the detector first. Your Answer: [1 Answer Question 10 (1 point} A spherical power source of 657 watts is 5.8 metres from a detector of area 1.5 cm2. If the signal is on the detector for 1.1 seconds, find the energy at the detector, in millijoules. with one digit of precision. Hint find the in tensity of the wave at the detector first, then the power Your