Question
State the various effects of force.
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| Element | A | B | C | D | E | F |
| Atomic number | 1 | 3 | 8 | 18 | 20 | 1 |
| Mass number | 2 | 7 | 16 | 40 | 40 | 4 |
Calculate the speed of a sound wave whose frequency is 2kHz and wavelength 65cm.
What is the actual shape of the orbit of a planet around the sun? What assumption was made by Newton regarding the shape of an orbit of a planet around the sun for deriving his inverse square rule from Kepler’s third law of planetary motion?
Choose plant’s micronutrients and macronutrients from the following:
Lron, Chlorine, Sulphur, Copper, Nitrogen, Calcium, Manganese, Potassium, Zinc, Magnesium, Molybdenum, Phosphorus.