14 during which phase of the moon can a solar eclipse occur?
a. new moon
b. full moon
c. third quarter
d. first quarter

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.