When a shade is pulled over a clear window, it blocks all the light from passing through. before the shade was pulled down, the window was . with the shade down, the window and shade together are .

transparent and opaque

Explanation:

Explanation:

When a shade is pulled over a clear window, it blocks all the light from passing through. Before the shade was pulled down, the window was transparent. With the shade down, the window and shade together are opaque.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.