A block-spring system oscillates in a simple harmonic motion on a frictionless horizontal table. Its displacement varies with time according to () = 0.2 cos(2 − /4). The earliest time the particle reaches position = 0.1 m is

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared