In the inclined plane ,the distance between A and C is 16 m and between B and C is 5 m. If its mechanical advantage is 2.5,calculate the disatance (i) effort applied to lift the load (ii) velocity ratio (iii) efficency) (iv) output work( (iv) input work​

Explain why electric current cannot exist if a current doesn't have a voltage source.

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air