The gauge pressure in your car tires is 2.50×105 n/m2 at a temperature of 35.0°c when you drive it onto a ship in los angeles to be sent to alaska. what is their gauge pressure (in n/m2) on a night in alaska when their temperature has dropped to −40.0°c? assume the tires have not gained or lost any air.

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.