A hole, and people die if they fall in there.
Answer:
56km
Explanation:
168 ÷ 240 = 0.7
0.7 × 80 = 56km
240 is the amount of minutes in 4 hours.
We divided 168 by 240 to get the distance covered in 1 minute. Afterwards, we needed 80 minutes so we multiplied the answer by 80.
65% x 70 = 45.5
The mass of oxygen in his body is 45.5 kg
1 newton is the force that accelerates
1 kilogram of mass at the rate of 1 m/s² .
So in SI base units, 1 newton = 1 kg-m/s² .
and 3 kg-m/s² = 3 newtons .
