When the temperature if the air is 25 degrees celsius, the velocity of a sound wave traveling through the air is approximately

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?