The origin of the universe remains a question. the most accepted theory, that suggests our universe started as a hot, dense, compact singularity and suddenly expanded explosively into existence, is called the

(a)steady state theory
(b)oscillating universe theory
(c)big bang theory
(d)nebular theory

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

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

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates