If the specific heat of water is 1.0 calorie/gram°c, how many calories are required to raise 500 grams of water 10.0°c?
510 cal
5,000 cal
50 cal
501 cal

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.