A parachutist bails out and freely falls 56 m. Then the parachute opens, and thereafter she decelerates at 1.7 m/s2. She reaches the ground with a speed of 3.2 m/s.
(a) How long is the parachutist in the air?
(b) At what height does the fall begin?

Rosa records the distance that a toy car rolls and the time it takes to cover the distance. what scientific practice is this? collecting data asking a question providing explanations communicating results

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew