Which list provides evidence for the general theory of relativity? constancy of the speed of light, gravitational redshift, gravitational lensing changes in a planet’s orbital path, curvature of space-time, length contraction gravitational lensing, constancy of the speed of light, curvature of space-time gravitational redshift, changes in a planet’s orbital path, gravitational lensing

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.