<em>Introduction:</em>
The majority of high school students do not get enough sleep each night, and this trend has increased in recent years. A policy that is gaining traction is that of delaying school start time in order to allow students to sleep more hours each night.
<em>Body 1: </em>
Based on this assumption, the Seattle School District decided to delay school start time by nearly an hour during the 2016-2017 academic year. Instead of beginning the school day at 7:50, now students were able to begin the day at 8:45 am. This was done in order to counteract a trend that is common in industrialised societies. Adolescents operate best when they get nine hours of sleep. However, few students enjoy this.
<em>Body 2:</em>
According to the publication Science Advances, this change allowed students to enjoy 34 minutes of extra sleep on average each day. The total nightly sleep increased from six hours and 50 minutes to seven hours and 24 minutes. This meant that most students were sleeping longer than they were before. By sleeping longer hours, they were also more likely to be aware at school. It also reverses the trend on sleep deprivation in students.
<em>Body 3:</em>
I believe that this is a good change. The Seattle School District has proven that delaying school time does help students get more sleep. In turn, when students get closer to their recommended sleep time, they are more likely to perform better at school, feel less anxious, handle stress better and build positive relationships with people. I believe this is a change that should be implemented all over the country.
<em>Conclusion:</em>
In conclusion, evidence shows that delaying school start times can increase the time that students sleep, and in turn this can increase their overall health and well-being. This measure should be implemented all over the country.
Complete question:
If it took a 30m³ capacity tank mediated by 2cm waterproof water faucet for 10 hours, calculate the flow speed (exit) of water from the tank.
Answer:
the flow rate of the water from the tank is 0.05 m³/min
Explanation:
Given;
volume of water in the tank, v = 30 m³
length of the waterproof faucet, L = 2cm = 0.02 m
duration of water flow through the tank, t = 10 hours
The flow rate of the water from the tank is calculated as;
Therefore, the flow rate of the water from the tank is 0.05 m³/min
Answer:
b. Titanium has the highest fracture stress value.
Explanation:
Titanium is the strongest material to fracture, according to the student. To support his claim, the evidence should be .. the titanium has the highest stress value for fracture.
If the materials is having high value of fracture stress it means that it is strong material and it is not easy to break that type of materials.
Therefore the answer will be B.
Answer:
A toy car and with the rest of the money buy big house.
Explanation:
1) Wind energy is generated through a wind turbine. When wind passes through the blades of wind mill, the blades of the wind mill tend to rotate. Due to the spinning of the rotor across the turbine, the kinetic energy from the wind is converted to electrical energy
2) Incase of wind energy, the consumption gets higher when there is more wind and would be zero incase of no movement of blades.
Incase of hydroelectric power, the generation is rather stable and consumption depends on the usage of power from the consumers
Incase of gasoline generator, the generation is also stable subject to availability of gasoline and consumption again depends on the usage of power from the consumers
3) Pros of Hydroelectric power
Cost of electricity generation is less
Can produce green energy
Produce mass volume of electricity
Cons of Hydroelectric power
Requires massive initial investement
Can be installed on certain demographical area