It took over four hundred years to develop the cell theory. After much research and repeating experiments, scientists came up with a theory that describes the basis for all life on Earth. Which of the following was NOT stated by the scientists who worked on the cell theory? point the cells of plants and animals were exactly the same all plant parts were made of cells cells come from other cells All animals are made of cells

The a metal retainer that keeps the rolling elements evenly spaced. n a. seal n b. separator n c. bearing n d outer race

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

(8%) problem 12. a bowling ball of mass mb 3 kg 's rolled down the lane with a velocity ofy-2/ m s lt strikes a single remaining pin mp 0.93 kg head on. after the collision the bowling ball has a velocity (in the same direction) of v2 1.1 m/s. = ▲ 33% part (a) write an expression for the velocity of pin in the horizontal direction after the impact, im ,, 33% part (b) what is the pins speed in ms? 33% part (c) assuming the coefficient of friction s μ,-0.1. how far in meters could the pin slide before stopping if it doesn't topple?