.Un bloque uniforme de 20 cm de longitud y 20 cm de altura descansa en un plano inclinado. Una pequeña ondulación evita que resbale por el plano,
¿cuál es el ángulo entre el plano inclinado y la horizontal, a partir del cual
comienza a voltearse el bloqué

Explain why you think this diagram shows what happened to the carbon in the biodome.

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.

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.