The electric circuit shown below is found in many households. S and T are called two-way switches. Each switch can connect the main circuit to Wire X or to Wire Y.
S
la) is the light bulb in the diagram above switched on or off?
(b) Give two settings of S and T to turn the light on.
(c) Suggest one location in a building where this kind of circuit would be useful.​

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.