In restricted visibility, a power - driven vessel under way gives ONE PROLONGED BLAST SOUND SIGNAL every two minutes. In restricted visibility, the ability to observe and see the front is greatly reduced, so the sound signal serves to warm other vessels that another one is within the vicinity.
Explanation:
The runner runs for a total time of
\Delta t=10.0 min= 600 sΔt=10.0min=600s
The energy converted by the runner during this time is equal to the power of the runner times the total time:
E=P \Delta t=400 W \cdot 600 s =2.4 \cdot 10^5 JE=PΔt=400W⋅600s=2.4⋅10
5
J
Answer:
electric current=ampere(A)
force=Newton (N)
area=metres square(m^2)
power=watt(w)
density=kg/m3
amount of substance =mole per cubic meter (mol/m3).
volume=cubic meter (m3),
Answer:
Steel is almost 2.9 times heavier the aluminium.
One very useful definition if energy is "the ability to do work".