Una persona sale de La Coruña en coche a las 12,00 horas en dirección a León.
La distancia entre estas dos ciudades es de 334 km. El conductor mantuvo una velocidad constante de 90 km/h. ¿ A qué hora llegará a León si se detiene una hora y media a comer?

the area between the graph and the t axis

wavelegth as in spectrum red oygbiv

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.