Neptune orbits the sun in about 1.45×10⁶ hours at a speed of about 1.95×10⁴ km per hour approximately what distance in km does Neptune travel in one orbit
anonymous
A 2.83×10⁹ km
B 2.83×10¹⁰ km
C 2.83× 10²³km
D 2.83×10²⁴km
To find the distance Neptune travels in one orbit, we can multiply the speed by the time it takes to complete one orbit.
Distance = Speed x Time
Distance = (1.95×10⁴ km/h) x (1.45×10⁶ hours)
Using some basic multiplication rules for scientific notation, we can simplify the calculation:
1.95 x 1.45 = 2.8275
10⁴ x 10⁶ = 10¹⁰
So the distance Neptune travels in one orbit is approximately 2.83×10¹⁰ km.
Therefore, the correct answer is B) 2.83×10¹⁰ km.
To find the distance Neptune travels in one orbit, we can multiply the time it takes to complete one orbit by its speed.
Given:
Time for one orbit = 1.45×10⁶ hours
Speed = 1.95×10⁴ km/h
Distance traveled = Time × Speed
Substituting the given values:
Distance traveled = (1.45×10⁶ hours) × (1.95×10⁴ km/h)
To multiply the numbers in scientific notation, we can multiply the coefficients (1.45 × 1.95) and add the exponents (10⁶ + 10⁴):
Distance traveled = 2.8275×10¹⁰ km
Rounding this value to two significant figures, the distance Neptune travels in one orbit is approximately 2.83×10¹⁰ km.
Therefore, the correct answer is B) 2.83×10¹⁰ km.