The name concrete operations describes how children (A) handle materials to solve problems.
(B) use what they have experienced to solve problems.
(C) reason abstractly to solve problems.
(D) develop hypotheses.

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.