All of these are examples of electrochemical cells used in our daily lives. Which involve voltaic electrochemical cells? Check all that apply. a cell that powers a flashlight a cell used to make gold-plated jewelry a cell that charges your cell phone battery a cell used to electrically split aluminum oxide into aluminum metal a cell that powers a TV remote control

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?