While a roofer is working on a roof that slants at 36° above the horizontal, he accidentally nudges his 85.0-n toolbox, causing it to start sliding downward from rest. if it starts 4.25 m from the lower edge of the roof, how fast will the toolbox be mov- ing just as it reaches the edge of the roof if the kinetic friction force on it is 22.0 n?

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

70 give a real life example showing how sensory neurons work with the motor neurons