2. A test charge experiences a force of 0.140 N at a point X in an electric field of intensity 8.50x10' N/C created by a negative charge. How big is the test charge and draw a vector to
indicate the direction of the field at X.

the answer to this is proletariats.

hope this : )

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.