Suppose you would like to start a fire by focusing sunlight onto a piece of paper. Which type of mirror you should choose and at what distance from the mirror should the paper held for best results? *** I WILL MAKE U BRAINLIEST IF U HELP ME

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?

The dot diagram represents the motion of the motorcycle as it moves from left to right

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost