Advertisements
Advertisements
Question
Planet A is at a distance of 9.35 × 106 km from Earth and planet B is 6.27 × 107 km from Earth. Which planet is nearer to Earth?
Advertisements
Solution
Distance between planet A and Earth = 9.35 × 106 km
Distance between planet B and Earth = 6.27 × 107 km
For finding difference between above two distances, we have to change both in same exponent of 10, i.e. 9.35 × 106 = 0.935 × 107, clearly 6.27 × 107 is greater.
So, planet A is nearer to Earth.
APPEARS IN
RELATED QUESTIONS
Simplify and write the answer in the exponential form.
`(- 3)^4 xx (5/3)^4`
The value of 35 ÷ 3–6 is ______.
For a non-zero rational number p, p13 ÷ p8 is equal to ______.
On dividing 85 by ______ we get 8.
Find the value of x so that `(5/3)^-2 xx (5/3)^-14 = (5/3)^(8x)`
Find a single machine that will do the same job as the given hook-up.
a (× 23) machine followed by (× 2–2) machine.
Find a single repeater machine that will do the same work as hook-up.
For hook-up, determine whether there is a single repeater machine that will do the same work. If so, describe or draw it.
Supply the missing information for diagram.
Simplify:
`[(4/3)^-2 - (3/4)^2]^((-2))`
