Why is it that we can see blood cells only with a microscope? a) the cells form clumps. b) the cells keep moving about. c) the cells have different shapes. d) the cells are very small in size.

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

A( developed during the process of technology design

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.