A 7 kg ball of clay moving a 4 m/s to the right crashes into a not moving 5 kg ball of clay. The balls of clay stick together.
The total momentum after the collision is __.
kg m/s.

*drag each tile to the correct location in the sequence* the table shows chronological events in the life of our sun, a medium-sized star. place the missing events into the correct rows of the table.

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?