The force of gravity on a wooden crate is 560 N. It can be pushed along a certain floor at steady speed if a horizontal force of 224 N is applied to it. How much horizontal force will be needed to move a stack of two crates at the same steady speed? What force will be needed if the two crates are not stacked but tied to one another side by side?​

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block

Acorporation gives out its profits as dividends paid to whom?

In the middle of the night you are standing a horizontal distance of 14.0 m from the high fence that surrounds the estate of your rich uncle. the top of the fence is 5.00 m above the ground. you have taped an important message to a rock that you want to throw over the fence. the ground is level, and the width of the fence is small enough to be ignored. you throw the rock from a height of 1.60 m above the ground and at an angle of 54.0 degrees above the horizontal. part a part complete what minimum initial speed must the rock have as it leaves your hand to clear the top of the fence? express your answer with the appropriate units. part b for the initial velocity calculated in the previous part, what horizontal distance beyond the fence will the rock land on the ground?