<u>Answer:</u>
The force on the 2.00-uC charge is 
<u>Explanation:</u>
We know that force between two charges is given by Coulomb’s law,
Where k = Coulomb’s constant =
And q1 and q2 are the charges given to be = -4.00-uC and 2.00-uC charges
And r = distance between the charges = 20 cm = 0.2 m
Substituting the given values in the formula we get force applied on 
charge,
F = attractive force which is the required answer.
Relational is the best type of research study for placing objects into categories.
Answer: Option B
<u>Explanation:
</u>
Categorization is the process of making a set of objects having similar properties under a single category. The research study can be classified as quantitative, qualitative and descriptive types.
The categorisation is based on the qualitative research under the sub type of relation or classification research. Based on the relation between each objects, they will be grouped together.
If two or more objects have any kind of positive relations like similar behaviours, they will be grouped together and if their properties are different then the objects will be placed in different groups.
Answer:
Explanation:
En la historia de la ciencia se han dado auténticas barbaridades. Pruebas con animales que hoy no perdonaría nadie, o investigaciones de conducta con personas como la de la cárcel de Stanford, que se han saldado como una especie de pasado incómodo sobre los límites de la experimentación. Sin embargo, pocos se pueden acercar por su carácter perturbador al denominado experimento de Little Albert o Pequeño Albert: El salvaje intento por probar con un bebé que las fobias pueden ser condicionadas y aprendidas. Y lo que es peor, conseguirlo.
Esta idea surgió de la mente de John Broadus Watson, reconocido padre de la rama conductista de la psicología, que desde 1913 había comenzado a probar en animales sus tesis. Estas bebían directamente del los estudios de Iván Pavlov, fisiólogo ruso que ganó el Nobel en 1904 por sus estudios sobre el sistema digestivo, pero que también sentó precedentes sobre la psicología.
link por si te interesa:
https://hipertextual.com/2017/10/pequeno-albert
Answer:
a).
b).
c).
Explanation:
The angular acceleration is constant so we can use the formulas of uniform motion with the model of angular acceleration
a).
so the total angle between t=0 and the time it stopped is
b).
=
c).
Answer:
Yes. Walking is controlled falling because you need to let go in order to move forward. If you never let your foot fall, your movements would be stilted and robotic. And according to medical engineers," When we walk normally we are constantly correcting tiny falls to keep ourselves stable."
Explanation:
