A glacier moves with a speed of 42 nm/s.
How many years would it take for the
glacier to move 0.78 km?
Answer in units of yr.
To determine the number of years it would take for the glacier to move 0.78 km, we first need to convert the speed of the glacier from nanometers per second (nm/s) to kilometers per year (km/yr).
1 kilometer (km) is equal to 1,000,000,000 nanometers (nm).
Therefore, the speed of the glacier can be converted as follows:
42 nm/s * (1 km / 1,000,000,000 nm) * (60 s / 1 min) * (60 min / 1 hr) * (24 hr / 1 day) * (365.25 days / 1 year) = (42 * 60 * 60 * 24 * 365.25) / 1,000,000,000 km/yr
Calculating this expression would give us the speed of the glacier in km/yr.
Once we have the speed in km/yr, we can determine how many years it would take for the glacier to move 0.78 km by dividing the distance by the speed:
time = distance / speed
Therefore, the number of years it would take for the glacier to move 0.78 km is:
0.78 km / (42 * 60 * 60 * 24 * 365.25) / 1,000,000,000 km/yr
Calculating this expression will give us the final answer in units of years.