A23.0 kg block at rest on a horizontal frictionless air track is connected to the wall via a spring. the equilibrium position of the mass is defined to be at x=0. somebody pushes the mass to the position x= 0.350 m, then lets go. the mass undergoes simple harmonic motion with a period of 4.10 s. what is the position of the mass 3.403 s after the mass is released?

Trumpeter a holds a b-flat note on the trumpet for a long time. person c is running towards the trumpeter at a constant velocity. person b is running away from the trumpeter at the same rate. person d is standing still the whole time. which person hears a frequency that is lower than the b-flat?

Which governments provide garbage collection services to homes and businesses

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )