Answer:
The speed of the train is 80 miles/hour.
Explanation:
Given:
Distance from Spokane to Seattle = 280 miles
The trip from Spokane to Seattle by train took = 3.5 hours
To find the speed of the train.
Solution:
The speed is the distance per unit time. So, to find the speed of the train we will divide the total distance of the trip by the time taken to complete the trip by the train.



Thus, the speed of the train is 80 miles/hour.
The relationship between electrical and charge force is that electrical force strengthens and increases the energy pulses and reflects off an object and makes the force about two times greater with charge.