At the instant the second bulb is connected ...
... the brightness of the <u>first bulb</u> doesn't change
... the brightness of the <u>second bulb</u> changes from dark (no brightness) to equal to the first bulb
Answer:
86.43
25.72
Explanation:
Location of center of mass from 59 Kg
Location of center of mass from 73 Kg
Momentum of inertia
Angular moment
(b)
When separation is 0.6 m
Location of centre of mass from 59 Kg
Location of centre of mass from 73 Kg
Momentum of intertia
Angular moment
The equation we want to use is F = ma
mass x acceleration = Force
0.075 kg x 70 m/s = 5.25 Newtons
<span>a) The law of conservation of momentum is satisfied because there must be air (and other combustion byproducts) expelled behind the aircraft as it moves forward. The collective momentum of those gases is equal in magnitude and opposite in direction to the forward momentum of the aircraft.
b) The aircraft obeys conservation of energy because it is simply converting energy to different forms. In its stationary form, there existed latent chemical energy in both the fuel on board and the oxygen in the air. As the aircraft moves, some of that chemical energy is converted into kinetic energy and heat, but it is indeed conserved.</span>