La velocidad de la luz en un material es del 67% del valor de la velocidad de la luz en el vacío. Considerando lo anterior, determine el valor del ángulo refractado si el ángulo de incidencia es de 34° y proviene de un material con índice de 1,73

i don’t know what the answer is i wish i

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.