Alkali metals alkaline earth metals and halogens and noble gases. I’m pretty sure
A cat (5kg) has a potential energy of 8J. The cat is stuck on top of a bookshelf and then falls off the bookshelf. What is the v
1 answer:
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Answer:
4.57 degree
Explanation:
As the dolphin is under water, so the angle is angle of refraction which is equal to 48.4 degree.
refractive index of water, n = 1.333
Let the angle of incidence which is the angle between the incident ray and the normal is i.
By use of Snell's law
i = 85.43 degree
Angle made with the horizon = 90 - 85.43 = 4.57 degree
Answer:
P₂ = 1.22 kPa
Explanation:
This problem can be solved using the equation of state:
where,
P₁ = initial pressure = 1 KPa
P₂ = final pressure = ?
V₁ = initial Volume = 1 liter
V₂ = final volume = 1.1 liter
T₁ = initial temperature = 290 k
T₂ = final temperature = 390 k
Therefore,
<u>P₂ = 1.22 kPa</u>