Air temperature in the Sahara Desert can reach 56degrees C (~134degrees F). What is the speed of sound in air at that temperature? Round your answer to three decimal places

A train moving at a speed of 40m/s sounds its whistle, which has a frequency of 500Hz. Determine the frequency heard by a stationary observer as the train approaches the observer. The ambient temperature is 24C. Round your answer to one decimal places

One type of BB gun uses a spring-driven plunger to blow the BB from its barrel. Calculate the force constant of its plunger's spring if you must compress it to 0.15m to drive the 0.05kg plunger to a top speed of 20m/s. Round to three decimal places

Fish are hung on a spring scale to determine their mass. What is the force constant of the spring in such a scale if the spring stretches 8cm for a 10kg fish? Round to the nearest whole number

A wave has a wavelength of 3m. Calculate the frequency of the wave if it is a sound wave. Take the speed of sound to be 343m/s. Round to one decimal places

A type of cuckoo clock keeps time by having a mass bouncing on a spring, usually something cute like a cherub in a chair. What spring constant is needed to produce a period of 0.5s for a 0.015kg mass? Round your answer to three decimal places