Which of the following is an example of the electrical force? A. A rollercoaster car remains on the track despite being upside
down.

B. A crate rests on a loading ramp, despite the force of gravity pulling
it down the ramp.

C. A sock sticks to a pair of pants after both are removed from the
clothes dryer.

D. A bar magnet held above metal shavings causes them to move
and clump together.

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

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.