FIVE STARS IF YOU HELP ME OUT! Which event is associated with convergent boundaries?

-formation of island chains

-creation of mid-ocean ridges

-creation of convection currents

-formation of rift valleys

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car