You are interested in studying how the amount of rain affects the rate of erosion of a mountain. In order to complete this investigation, you create a model of a mountain. Your model mountain is made out of sand and your rain is modeled by water dropped from a pipette (same tool as a dropper). Analyze the diagram of your model below. You create four identical sand mountains. Every day you drop a certain amount of water on each mountain. You do this for 5 days. To measure the erosion of the mountain, you determine the height of the mountain every day. You collect the data below. What conclusion can you draw based on your experiment?

A33.1 g copper object is launched from a 1.5 m 30° steel incline positioned on the floor by being pulled up a string attached to a 50.0 g mass suspended vertically over a pulley. the object is projected towards a glass table where it lands when it is at the point along its trajectory with the lowest speed. it comes to a halt when it clears the opposite edge of the table. it then falls and lands on 9 physics texts each 5 cm thick that are stacked on the floor on the opposite side of the table. assume that the table does not have a ledge and the rectangular object experiences 0.05 n of air resistance as it falls towards the books. how far and how long did the object travel and how fast does it hit the books. assume that at the moment the copper object leaves the incline, the massless string and ideal pulley break off

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

An object's buoyant force and weight mean the same thing.a. trueb. false