Parallel laser beam (=550 nm) falls perpendicularly on the opaque screen that has a circular opening with diameter D=2 mm. A dark spot is observed at a distance b1=18 cm on the central axis behind the screen. What is the minimal distance b that one has to move away from this spot and further away from the screen in order to observe a dark spot again?

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

Pl asaaap ! match the term to the correct description. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. movement that is like a t transfers energy from one location to another 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave

The pressure proportional to the area a- inversely b- directly c- increase d-decrease