La respuesta es la letra b
Answer:
a) the light is close to normal therefore the reference incidence of medium 1 is less than medium n2 where the ray is transmitted.
b) The ray is far from normal in this case the refractive index of medium 1 is greater than index of medium 2
Explanation:
The expression for the angle of refraction is
n₁ sin θ₁ = n₂ sin θ₂
refractive index n₁ is for incident light and n₂ is for transmitted light.
We have two cases
a) the light is close to normal therefore the reference incidence of medium 1 is less than medium n2 where the ray is transmitted.
b) The ray is far from normal in this case the refractive index of medium 1 is greater than index of medium 2
Answer: B
Explanation: 3912=10.2v +1/2(5.31)(10.2)^2 -> v≈ 356.45 (B)
Answer:
v = 22.5 m/s
Explanation:
The speed of the bucket can be found using the following equation:
Where:
: is the final speed =?
: is the initial speed = 0 (starts from rest)
a: is the acceleration
t: is the time = 2 s
We need to find the acceleration, it can be found as follows:
Where:
F: is the force = 45 N
m: is the mass = 4.0 kg
Now, the speed is:
Therefore, the speed that the bucket will have is 22.5 m/s.
I hope it helps you!
Answer:
Cold blooded animals are those animals that cannot regulate their body temperature and their temperature keeps changing according to their environment. ... Warm blooded animals are the animals that have a constant body temperature and can easily adapt to extreme temperatures as they can regulate their body temperature.