Acarpet which is 7 meters long is completely rolled up. when meters have been unrolled, the force required to unroll it further is how much work is done unrolling the entire carpet? your answer must include the correct units.

Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.

Hydrogen and helium are both members of?

The ability to make things happen is also called a. heat b. force c. matter d. energy