Answer:
F
Explanation:
Newton's Third Law (Law of Action-Reaction) states:
Every action has an equal and opposite reaction and it occurs between two objects
In this scenario, the action would be the skater pushing off of the wall, therefore the reaction would be the wall pushing off of the skater since the two objects that are interacting are the wall and the skater.
To solve the problem it is necessary to apply the concept of Load on capacitors. The charge Q on the plates is proportional to the potential difference V across the two plates.
It can be mathematically defined as:
Q= CV
Where,
C = Capacitance
V = Voltage
Our values are given as,
Substituting values in the above formula, we get
Where
Therefore the charge must be 18pC to create a 30V Poential difference.
According to my calculations the answer should be A. If not so sorry
KE=1/2mv^2 so from the given information we have;
2543J=1/2(110kg)v^2
5086J=110kg(v^2)
5086J/(110kg)=v^2
Sqrt(5086J/110kg)=v
v=6.80m/s
Hope this helps. Any questions please just ask. Thank you.
Answer:
Area of a rectangle,
Explanation:
Let, the length of the rectangle is l and width is b. It is given that, a rectangular walkway is 5 times as long as it is wide.
According to question, l = 5b.....(1)
The perimeter of the rectangle is 360 inches. It is given by:
b = 30 inches
Length, l = 150 inches (from equation 1)
Area of a rectangle is given by :
Hence, this is the required solution.