Ablock of mass m is placed on a frictionless plane inclined at an angle θ and the block is at distance d from the end. of course we would expect the block to slip down the plane. suppose we revolve the incline around the vertical axis as shown in the figure below. at what period of revolution will the block remain in place on the plane?

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

You are the coordinator for a program that is going to take place at night in a rectangular amphitheater in the mountains. you will have no access to any electricity, but you must be able to illuminate the entire grounds. you know the intensity of the light from a lantern varies inversely as the square of the distance from the lantern. suppose the intensity is 90 when the distance is 5 m. a. write an equation to model the situation. b. solve for the constant of variation. c. write the equation to model the situation using the constant () of variation. d. you have been given lanterns with 40 light intensity. use your equation to solve for the distance from the lantern. e. you need to illuminate 225 km. how many meters do you need to light? f. how many lanterns will you need?

How does the formation of intrusive and extrusive igneous rocks differ?