264 km
72 x 3 hr = 216 km
72/60 (min in an hr) = 1.2(km per min) x 40 = 48 km
216 + 48 = 264
Answer:
Carbon dioxide
Explanation:
During photosynthesis cells use carbon dioxide and energy of sun to make sugar molecules and oxygen.
Hope i helped u...
Answer:
9758 how many significant figures
A) 5 kg block of wood
B) 100 kg person
C) 412 kg motorcycle
D) 2540 kg elephant
Answer: D
Since work is the change in kinetic energy, the efficiency of a machine can be stated as the percentage of the output work divided by the input work minus the work lost from to friction and heat. Multiply Eff by 100% to get the efficiency percentage.
