An airplane was 300 km [N] of Toronto airport, 3 hours later the airplane 600 km [S] of Toronto airport, calculate.
a. The airplane’ total displacement relative the Toronto airport.
b. The airplane average velocity

The softest and hardest minerals are: softest hardest

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.