23. A passenger elevator travels from the first floor to the 60th floor, a distance of 210m, in 35s. What is the elevator’s speed?

An airplane flying parallel to the ground undergoes two consecutive displacements. the first is 76 km at 39.8◦ west of north, and the second is 156 km at 59.9◦ east of north. what is the magnitude of the plane’s total displacement? answer in units of km. 020 (part 2 of 2) 10.0

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?