Chayse is working on analyzing the electromagnetic spectrum, focusing on ultraviolet rays. he determines that a uv ray has a frequency of 1.53 × 1016 hz and a wavelength of 1.96 × 10-8 m. are his results reasonable? explain your answer.

A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

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