The force of gravity on a block of cheese in an elevator at rest is -20 N. If the elevator then begins accelerating down at a rate of -3 m/s^2, what is the normal force of the elevator on the
cheese?

A) 0 N
B) 14N
C) 20 N
D) 26 N

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s

Ascientific blank must be testable and capable of being proven false?

What property of an object determines its inertia?