Asystem of pulleys is used to raise a load of bricks that weighs 1,700 newtons. the force applied to the pulley is 340 newtons. what’s the mechanical advantage of this machine?

Several processes form metal ore. match each process to its description. volcanic activity weathering hydrothermal energy rocks break down as they interact with air and water. arrowright density differences and other factors cause metals to concentrate in igneous rocks. arrowright seawater heats up from contact with hot rock, and metals dissolve in it. the water rises and contacts cooler water, causing metal ores to settle on the ocean floor. arrowright

Bernie drove home from a vacation in 1.5 hours. he traveled a total distance of 60 miles. what was his average speed in miles per hour? a. 60 mph b. 90 mph c. 40 mph d. 55mph

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?