Comparing radio waves and ultraviolet light, which of the following is true? 1. Radiowaves have lower frequency, same speed, and longer wavelength than ultraviolet light. 2. Radiowaves have higher frequency, same speed, and longer wavelength than ultraviolet light. 3. Radiowaves have lower frequency, faster speed, and shorter wavelength than ultraviolet light. 4. Radiowaves have lower frequency, slower speed, and longer wavelength than ultraviolet light.

What is the measurement of how fast an object moves relative to a reference point?

Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.

Imagine an isolated positive point charge q (many times larger than the charge on a single proton). there is a charged particle a (whose charge is much smaller than charge q) at a distance from the point charge q. on which of the following quantities does the magnitude of the electric field created by charge q at particle a's position depend? check all that apply. the type of the charge on the charged particle athe relative orientation between q and a (while the distance between q and a is fixed)the specific location of the charged particle a (while the distance between q and a is fixed)the amount of the charge on the point charge qthe specific location of the point charge q (while the distance between q and a is fixed)the distance between the point charge q and the charged particle athe amount of the charge on the charged particle a