An object oscillates in the x direction with a position of x(t) = 3cos(2πt), where distance is measured in meters and time is measured in seconds. what is the speed of the object at t=1s?

In trapezoid bath, ah=19.7 and et=16.1. identify be.

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.