Q1. A steel wire with mass 25.43 g and length 1.33 m is strung on a bass so that the distance from the nut to the bridge is 1.13 m
(a) calculate the linear density of the string.
(b) What velocity wave on the string would produce the desired fundamental frequency of the E1 string, 35.65 Hz?
(c) Calculate the tension required to obtain the proper frequency.
(d) Calculate the wavelength of string's vibration.
(e) What is the wavelength of the sound produced in air? (Presume the speed of sound in air is 343 m/s.)
Q2. A ferrari race car on the straight road starts from rest, accelerating at 2.00 m/s^2 until it reaches a speed of 20.0m/s. Then the car travels for 20.0 s at the constant speed until the brakes are applied, stopping the truck in a uniform manner in an added 5.00 s. (a) how long is the truck in motion? (b)What is the average velocity of the truck for motion described?