Yes, the equation is balanced. There are the same number of Nitrogen (N) and Hydrogen (H) atoms one each side of the equation.
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Answer:
No
Explanation:
According to physics, the work done by porter is zero but in reality porter gets tired as muscular energy is being used up.
In physics, work is the dot product of force and displacement. when the porter moves with the luggage, the weight act downwards while the porter moves forward. The angle between force and displacement is 90°. Thus, work done by the porter is zero.
The muscles are doing work in this case which is not calculated in physics.
Power is the rate of energy consumed during the work.
Answer:
displacement is a vector quantity
Take gravity you are accelerated toward the ground. Since gravity has both a direction and a magnitude, then it is a vector.
Answer:
0.1164 m
0.49387 m
Explanation:
m = Mass = 5 kg
g = Acceleration due to gravity = 9.81 m/s²
h = Height from which brick falls = 12 m
k = Spring constant = 8 kN/m
a) Potential energy of the brick
Potential energy in spring
The compression of spring = 0.5-0.3836 = 0.1164 m
b) Weight of the brick
The final length of the spring = 0.5-0.00613 = 0.49387 m
