When are the displacement and acceleration equal to zero for the motion of a mass on a spring? at maximum displacement OB at minimum displacement Ос. at the equilibrium position at a displacement of 2 x OE at a displacement of - X 3

e/c, where e is its total energy

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

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.