A person of mass 70kg runs up a flight of stairs with a vertical 5m. If the trip takes 7s to complete, calculate the persons power.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

What is a costume plot? why is it important to a film or theater production?

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.