Which simple experiment could be conducted to show an example of how lightning is created? a) rub a balloon so it picks up extra electrons from the sweater or your hair and becomes slightly negatively charged. b) rub a balloon filled with air on a wool sweater or on your hair. then hold it up to a wall. c) connect the positive pole of an electrical source to the negative pole, so you create a circuit. d) walk across a carpet, shuffling your feet and touching something made of metal.

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.