One light year is equal to 9.46x1012 km. How many light years are in 5.46x1014 km?
Use standard notation and three significant digits in your answer.
Answer to Q :
Given 1 Light year (ly) = 9.46 X 1012 km
5.46 X 1014 km = 5.46 X 1014 ÷ 9.46 X 1012 = 0.5771 X 102 = 57.71 light years
One light year is equal to 9.46x1012 km. How many light years are in 5.46x1014 km? ...
how many AU are there in 2.10 ly light-year? express your answer using three significant figures
How many nanoseconds does it take light to travel a distance of 7.10 km in vacuum? Express your answer numerically in nanoseconds.
How many C atoms are present in the sample of C3H8 with mass 3.81 g? Avogadro’s number is 6.022 × 1023. Enter your answer using scientific notation and to three significant digits.
how many nanoseconds does it take light to travel 1.0 km in a vacuum? The speed of light is 2.99x10^8 m/s.
How many yards are there in 2.5km? One yard is exactly
0.9144m. give answer in scientific notation
How many yards are there in 2.5 km ? One yard is exactly 0.9144m. Give answer in Scientific notation. 0.002286
How many C atoms are present in the sample of C3H8 with mass 4.41 g? Avogadro’s number is 6.022 × 1023. Answer using scientific notation and to three significant digits.
1) How long does it take light to travel 800 km in a vacuum? (Express your answer to two significant figures.) ms Submit
Significant Figure Questions 1. How many significant figures are in each of the following numbers? 2430 0.0251 3 1.010 x 10 243.0 0.0040 900.0 243 7063.1 2.7000 5.98 x 103 2. Using standard scientific notation express 0.14503 meters in: em with 2 signíficant figures km with 4 significant figures 3. Express the following in scientific notation: 6795 to three significant figures 0.42885 to four significant figures
1. how many significant figures do each of the following numbers have: (a) 214, (b) 81.60, (c)7.03, (d) 0.03, (e) 0.0086, (f)3236 and (g) 8700? 2. write the following numbers in powers of tenth notation: (a)1.156,(b)21.8,(c)0.0068,(d)328.65,(e)0.219 and (f) 444. 3.Write the following as full(decimal) numbers with standard units: (a) 286.6mm, (b)85 microV, (c)760 mg, (d) 60.0 ps, (e) 22.5fm, (f) 2.50 gigavolts. 4.A light year is the distance light travels in one year( at speed-2.998 x 10^8m/s). (a) how many...
Two stars of equal mass form a binary system. If the two stars have an average separation of 7.38 x 108 km, and the magnitude of the gravitational force is 2.23×1027 N between the stars, find the mass of each star in kg. Express your result in scientific notation and to three significant digits. Be careful with units!