Momentum is a vector quantity. The direction of the momentum vector is the same as the direction of the velocity of the ball. In a previous unit, it was said that the direction of the velocity vector is the same as the direction that an object is moving.
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D. because the statue has a new chemical called patina. It is no longer copper.
Answer:
The energy stored is: 62.5 Joules
Explanation:
Given
--- spring constant
--- stretch
Required
The amount of energy
This is calculated as:
![U = \frac{1}{2} kx^2](https://tex.z-dn.net/?f=U%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20kx%5E2)
![U = \frac{1}{2} * 500N/m * (0.5m)^2](https://tex.z-dn.net/?f=U%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%2A%20500N%2Fm%20%2A%20%280.5m%29%5E2)
![U = 250N/m * (0.5m)^2](https://tex.z-dn.net/?f=U%20%3D%20250N%2Fm%20%2A%20%280.5m%29%5E2)
![U = 62.5\ J](https://tex.z-dn.net/?f=U%20%3D%2062.5%5C%20J)
Answer:
The property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.
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