1. The speaker uses needles from two
trees native to
Florida
Georgia
Alabama
2. How many measurements did the
speaker make of each needle type?
-)
eight
ten
twelve
3. The speaker reduced human error by
the measurements.
repeating
rounding

How is the gravitational force related to the distance between two objects?

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?