3. A 500 g block of wood is at the top of a ramp. It slides down the ramp and collides with a 750 g cart that is at rest at the bottom of the ramp. After the collision, the cart is traveling at 2.55 m/s and the block is at rest. How tall is the ramp?

the correct choice is a .

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resonant frequency

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.