There would be no light at night foe nocturnal animals
Answer:
The difference in the amount of energy transferred by the two bulbs is 1200 J.
Explanation:
The energy transferred by the two lightbulbs can be calculated with the given equation:
Where P is the power and t is the time
For the 60 W lightbulb:
For the 100 W lightbulb:
Hence, the difference in the amount of energy transferred is:
Therefore, the difference in the amount of energy transferred by the two bulbs is 1200 J.
I hope it helps you!
mass and velocity
Explanation:
Momentum depends on two important factors which are the mass and velocity of a body.
Momentum = mass x velocity
- Momentum can be defined as the product of mass and velocity.
- It is a vector quantity that has both magnitude and directions.
- Momentum is a very important quantity in physics as it shows the impact of a force on another.
- The unit is Kgm/s²
- It is the same as impulse.
learn more:
Momentum brainly.com/question/2990238
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Answer:
Raindrops start to form in a roughly spherical structure due to the surface tension of water. This surface tension is the "skin" of a body of water that makes the molecules stick together. The cause is the weak hydrogen bonds that occur between water molecules.
Answer:
563.86 N
Explanation:
We know the buoyant force F = weight of air displaced by the balloon.
F = ρgV where ρ = density of air = 1.29 kg/m³, g = acceleration due to gravity = 9.8 m/s² and V = volume of balloon = 4πr/3 (since it is a sphere) where r = radius of balloon = 2.20 m
So, F = ρgV = ρg4πr³/3
substituting the values of the variables into the equation, we have
F = 1.29 kg/m³ × 9.8 m/s² × 4π × (2.20 m)³/3
= 1691.58 N/3
= 563.86 N
