Answer:
<u>36 m</u>
Explanation:
We can consider this to be an AP.
Then,
<u>Subtract a₇ from a₉.</u>
- a + 8d - a + 6d = 24 - 20
- 2d = 4
- d = 2
<u>Finding a₁₅</u>
- a₁₅ = a + 14d
- a₁₅ = 8 + 14(2)
- a₁₅ = 8 + 28
- a₁₅ = <u>36 m</u>
Answer:
If the speed of the merry-go-round doubles, the force you will need to exert to hang on is 400 N.
Explanation:
Given;
initial force exerted to hang on, F₁ = 100 N
The force exerted on the merry-go-round in order to hang on must be an inward force known as centripetal force.
Centripetal force is given by;
Therefore, If the speed of the merry-go-round doubles, the force you will need to exert to hang on is 400 N.
The correlation is 19 percent. That means there is a significant dependency of aggressive behaviour of the people on the time spent on playing video games.
It means that the more one spends time on playing video games, the more aggressive one becomes. In other words people playing video games for significant duration develop aggressive behaviour. Also, people who play less of video games are less aggressive.
19% of persons are aggressive because they spend a lot of time playing video games.
19 % of Less aggressive persons are found spend less time on playing video games.
We can say that these relations are true to a confidence level, as there have been a lot of (21) controlled experiments to support this fact.
<h2>
Tension in tow line is 2000 N</h2>
Explanation:
Power is the ratio of work and time.
Work = Force x Displacement
W = F x d
Here force is tension, T
So
W = T x d
Substituting
We have
Power, P = 30kW = 30000 W
Velocity, v = 15 m/s
Substituting
30000 = T x 15
Tension, T = 2000 N
Tension in tow line, T = 2000 N
Answer:
The sun touches earth during daytime and the suns rays heat our earth giving us heat. The sun heating the earth is also considered radiation.
Explanation: