Acar battery with a 12 v emf and an internal resistance of 0.037 ω is being charged with a current of 45 a. note that in this process, the battery is being charged.
(a) what is the potential difference (in v) across its terminals?
(b) at what rate is thermal energy being dissipated in the battery (in w)?
(c) at what rate is electric energy being converted to chemical energy (in w)?
(d) what is pr in this case?

Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?