1. three wires sit at the corners of a square, all carrying currents of 2 a into the page
keeping the currents the same in wires 1 and 3, what should the current be in wire 2
to counteract the magnetic fields from wires 1 and 3 so that there is no net magnetic
field at point p?

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

pretty sure it's false

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.