A typical car driven 20,000 km a year emits to the atmosphere about 11 kg peryear of NOx(nitrogen oxides), which cause smog in major population areas. Natural gas burned in the furnace emits about 4.3 g of NOxper therm (1 therm= 105,500 kJ), and the electric power plants emit about 7.1 g of NOxper kWhof electricity produced. Consider a household that has two cars and consumes9000kWh of electricity and 1200 therms of natural gas per year. Determine theamount of NOxemission to the atmosphere per year for which this householdis responsible.

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.