Convection currents move tectonic plates in two locations as described below: location a: tectonic plates move away from each other location b: one tectonic plate is forced beneath another what statement most likely describes the effects of this movement at each location? a. location a creates a volcano; location b uplifts and forms a mountain b. location a uplifts and forms a mountain; location b creates a volcano c. location a creates a gap allowing molten material to seep through; location b melts and recycles the crust d. location a melts and recycles the crust; location b creates new ocean crust

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?