In the illustration, the block on the table is at rest. then, unbalanced forces act on the block. what is the result?

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?

You can melt ice by applying pressure because the solid/liquid line has a slope.