Answer:
t√2.
Explanation:
Given that both are rest at initial position.
The time taken by stone A is t
h= 1/2 g t² ----------1
Lets time taken by stone B is t'
2 h= 1/2 g t'² -----------2
From equation 1 and 2
2 h= 1/2 g t'²
2 x 1/2 g t² = 1/2 g t'²
t'²=2 t²
t' = t√2
So the answer is t√2.
e. sqrt(2) .t
Answer:
w₁ = 40 rpm
Explanation:
Number of teeth of gear A = 10
Number of teeth of gear B = 40
Speed of gear B = w₂ = 10 rpm
Speed of gear A = w₁ = ?
Gear ratio is given by:
N₁/N₂ = w₂ / w₁
w₁ = N₂/N₁ * w₂
⇒ w₁ = 40/10 * 10
⇒ w₁ = 40 rpm
Answer:
The correct option is;
Light energy, which shines on the area around the fire
Explanation:
From the given figure the flame is visible, as the translucent region which shows that the heat from the fire causes flammable organic (carbon containing) vapors to rise and as the vapors get ignited to burn, the heated carbon atoms including the other atoms present in the burning vapor emit light energy due to their incandescent (emitting light when heated) nature, in the same manner an incandescent electric bulb produces light.
Light energy is the visible form of electromagnetic radiation that consists of packets of electromagnetic energy called photons which are emitted by the atoms of a heated incandescent material.
I think it is a insulator because plastic is a poor conductor of heat