how much work is done by the coulomb force when the alpha particle moves to the midpoint of one of the sides of the square?

Ben is interested in using a source that provides original research, current and developing trends and experts within specific fields. which source should he use?

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

Tissues that carry food water and nutrients throughout the plant