21) A car has an initial velocity of 15m/s. The car slows with a negative acceleration of 4.5m/s^2. How long does it take the car to slow to 4m/s?

Using the periodic table, complete the table to describe each atom. type in your answers

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Acontrol during an experiment. might change remains constant does not exist does change