A CD has to rotate under the readout-laser with a constant linear velocity of 1.25 m/s. If the laser is at a position 4.9 cm from the center of the disk, what are the revolutions per minute (rpms) of the disk?

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.

watch you tube or play clash royale, mainly clash royale

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.

365.25 earth days are in the year of a light year