Asolid brass (bulk modulus 6.7 x 1010 n/m2) sphere is subjected to a pressure of 1.0 x 105 pa due to the earth's atmosphere. on venus the pressure due to the atmosphere is 9.0 x 106 pa. by what fraction r/r0 (including the algebraic sign) does the radius of the sphere change when it is exposed to the venusian atmosphere? assume that the change in radius is very small relative to the initial radius.

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.