Avoltaic cell consists of an au/au3+ electrode (e° = 1.50 v) and a cu/cu2+ electrode (e° = 0.34 v). calculate [au3+] if [cu2+] = 1.20 m and ecell = 1.13 v at 25°c.

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.

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.