What should a free-body diagram look like for a skydiver who has opened his parachute and is now slowing down as he falls?

there is an arrow up for air resistance and an arrow down for gravity. the arrow up is longer than the arrow down.

there is only an arrow down for gravity.

there is an arrow up for air resistance and an arrow down for gravity. the arrows are the same length.

there is an arrow up for air resistance and an arrow down for gravity. the arrow up is shorter than the arrow down.

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

Using a caesar cypher with an offset of three characters (a -> d, b -> e, z -> c), what would be the correct cypher text for the plain text "attack at dawn"?

Due in 40 explain in terms of frame of reference if you’re inside a moving train everything on the outside can seem to be moving