Table 14.1 Semimajor Semiminor Orbit length Planet аxis, a (AU) axis, b (AU) a = b/a (AU) Mercury 0.387 0.379 0.979 2.407 Venus 0.723 0.723 1.000 4.543 Earth 1.000 0.999 0.999 6.280 Мars 1.524 1.517 0.995 9.554 Jupiter 5.203 5.179 0.995 32.616 Saturn 9.539 9.524 0.998 59.888 Uranus 19.182 19.161 0.999 120.458 Neptune 30.058 30.057 1.000 188.857
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
Speed of Jupiter Verify that the length of one orbit of Jupiter
is approximately 32.616 AU (see Table). Then determine
the average speed of Jupiter relative to the sun in miles per hour.
(Hint: It takes Jupiter 11.8618 Earth years to orbit the sun.)
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