The Gravitational Potential Energy is 29400 joules
Step-by-step explanation:
The Gravitational Potential Energy P.E = m g h, where
1. m is the mass
2. g is the acceleration of gravity
3. h is the height
∵ The mass of the hiker is 50 kg
∵ The height of the cliff is 60 meters
∵ g = 9.8 m/s²
- Substitute these values in the rule above
∴ P.E = 50 × 9.8 × 60
∴ P.E = 29400 joules
The Gravitational Potential Energy is 29400 joules
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898969 to nearest hundred thousand
8 is the hundred thousand term therefore,
900000
Answer:
80 units ^2
Step-by-step explanation:
The semicircle that is added on to the rectangle can be translated to fit into the slot where a semicircle has been removed (both semicircles are congruent as they have the same diameter). This leaves us with a plain rectangle, with area b * h, or 8 * 10, or 80.
