Approximately how many atoms are there in a baby elephant (mass240 kg)? Give the order of magnitude (power of ten).
| A: 18 | B: 22 | C: 28 | D: 35 | E: 44 |
The feet of the elephant are approximately round with a radiusof 6 cm. How much average pressure does the elephant exert on theground under its feet if it is standing on all four feet? (inkPa)
| A: 52.0 | B: 65.1 | C: 81.3 | D: 102 | E: 127 |
The elephant has a volume of 0.23 m3. If it is takinga bath with 54 percent of its volume under water (fresh water,density 1 g/cm3), how much average pressure do its feetexert on the bottom of the pool? (in kPa)
| A: 8.03 | B: 10.7 | C: 14.2 | D: 18.9 | E: 25.1 |
