By definition, any substance that accepts a proton is best defined as .an arrhenius acidb. an arrhenius basec. a bronsted-lowry acidd. a bronsted-lowry base

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

the device is called “ rocket engine”