The potentially harmful effects of mining can be reduced by A. Flushing mines with water.
The moon does not have its own light.
Answer:
I = 97.2 10³⁶ kg m²
Explanation:
The moment of inertia of a body the expression of inertia in the rotational movement and is described by the expression
I = ∫ r² dm
In this problem we are told to use the moment of inertia of a uniform sphere, the expression of this moment of inertia is
I = 2/5 M r²
where m is the mass of the earth and r is the radius of the earth.
Let's calculate
I = 2/5 5.97 10²⁴ (6.38 10⁶)²
I = 97.2 10³⁶ kg m²
Answer:
The magnitude and direction of the non conservative force acting on the box is <F= 59.36 N - DUE EAST DIRECTION>.
Explanation:
m= 4 kg
Vi= 11 m/s
Vf= 1.5 m/s
d= 4m
d= Vi * t - a * t²/2
clearing a:
a= 2*(Vi * t - d)/ t²
Vf= Vi - a * t
replacing "a" and clearing t:
t= 2d/(Vf+Vi)
t= 0.64 s
found now the value of a:
a= Vi - Vf / t
a= 14.84 m/s ²
F= m * a
F= 59.36 N
