A proton with a speed of 3.0 x 105 m/s accelerates through a potential difference and thereby increases its speed to 6.0 x 105 m/s. Through what magnitude potential difference did the proton accelerate

Describe uniform velocity and variable velocity in short

=force × distance a. work b. velocity c. pressure d. momentum

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?