Convection currents cause the magma under the trench to slowly rise causing the trench to open up further releasing this magma at the same time.
Answer:
1.52 m
Explanation:
We are given that
Maximum force=F=679 N
Mass of rock ,m=385 kg
Distance,d=0.233 m
We have to find the minimum total length L of the rod required to move the rock.
Torque on rock=
Where
Torque on man=
Hence, the minimum total length of rod=1.52 m
Answer:
369.84 W
Explanation:
= Mass flow rate = 10.62 kg/s
v = Velocity of wind = 8 m/s
Power is given by
The power supplied is 339.84 W
If 30 W of this power is wasted that means 339.84+30 = 369.84 W is required
B: The black hole does not give off mass, it only becomes smaller and denser. Hence why the gravity is so strong.
Kinetic energy. I hope that helps