1) Consider an electrical power transmission line that carries a constant electrical current of = . The cylindrical copper cable used to transmit this current has diameter ∅ = , and length = . If there are , × free electrons per cubic meter ( ) in the cable, calculate how long it would take an electron to cross the entire length of the transmitter line.

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.