The critical angle is the angle of incidence which gives 90 degrees refraction of light. If the incident angle is less than the critical angle, the ray of light will penetrate the second medium and if the incident angle is more than the critical angle, the ray will not penetrate and total internal reflection will occur.
So, to decide whether the ray will penetrate or not, we need to calculate the critical angle and compare it with the incident angle.
critical angle is calculated using the following rule:
critical angle = arcsin (n2 / n1) where
n1 is that of the oil = 1.47
n2 is that of the water = 1.33
therefore,
critical angle = arcsin (1.33 / 1.47) = 64.79 degree
Since the incident angle is greater than the critical angle, therefore the ray will not penetrate and will undergo total internal reflection.
Answer:

Explanation:
From the question we are told that
Pressurized air pressure is 
Atmospheric pressure is 
Initial acceleration of the water rocket is 
Acceleration of the water rocket is 
Mass of water is 
Generally total mass is given mathematically given as

Generally the tension on the rocket is given mathematically given as


T is also

Therefore





therefore diameter of nozzle is mathematically given as

Answer:
Personal attitudes play a role in conflict resolution and include prejudices, biases, prior experience, and the level of importance of a topic to the parties involved. It is important to note that you can control your own attitude, but you cannot control the attitudes of others; it is necessary to focus on your attitudes and assumptions before you address the other party's. Next, you need to know what the nature of the conflict is, or what the conflict is about. It is necessary to know how severe the conflict is, how easily it can be resolved, how much sacrifice it will take to overcome, and how heated it is likely to get. Lastly, one needs to understand the capabilities of the people involved. Is everyone on the same level and do they have what they need to work on the conflict, i.e. money, time, and support?
Explanation:
The speed of the ball is B. 5 meters per second
Explanation:
For an object in uniform motion (= at constant velocity), the speed can be calculated using the equation

where
v is the speed
d is the distance covered
t is the time taken
For the ball in this problem:
d = 50 m is the distance covered
t = 10 s is the time taken
Substituting, we find the speed:

Learn more about speed:
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