A vat of ethyl alcohol expands by 0.00823 m^3 when the temperature is raised by 44.8 C. what was the original volume of the alcohol? PLEASE HEL

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.

While carrying a heavy box up the stairs,you set the box on a step and rest. then you pick up the box and carry it to the top of the stairs. describe these actions in terms of balanced and unbalanced forces acting on the box.

You notice the birds sitting on the electrical wires which of the following explain why the birds don't get shocked