Final answer:
To find the height a 20-ton container needs to be raised to increase its potential energy by 2MJ, convert the mass to kilograms and use the potential energy formula PE = mgh to calculate the height.
Explanation:
To calculate the height the container needs to be raised for its potential energy to increase by 2MJ:
- Convert 20 tons to kilograms (1 ton = 1000 kg).
- Use the formula for potential energy: PE = mgh.
- Plug in the given values and solve for h.
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