The position of a particle undergoing simple harmonic motion is given by x(t)=acos(bt+π/3), where a = 8.00 m and b = 4.00 s^−1 . Required:
a. What is the amplitude?
b. What is the frequency f?

The mantle is made up of which structural zones?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.