Answer:
A symbol and a model are both examples of a representation because they are presented in place of the real thing.
Explanation:
A symbol is a sign, a letter, mark, token, figure, or image used to stand in place of an object, function, or process. For example, co2 is used in Chemistry to represent carbon dioxide. There are many symbols representing other objects or meanings. Mathematically, we can state that "a" equals 40. "a" is a symbol representing the numerical value "40." Similarly, a model is a representation of a structure or a person on a smaller scale. For example, Architects produce models of buildings and other projects that they design.
Gravitational acceleration (Ga) is inversely proportional to k / Distance^2
so Ga * Distance^2 = K
On the surface of Earth acceleration due to gravity is about 9.8m/s^2 with an average distance to the earths core of about 6371 km (Wolfram alpha).
So k = 9.8 * 6371^2
I'm presuming that your distance of 116 is km
As
Ga = k / distance^2
Ga = ((9.8 * 6371^2) / (6371 + 116)^2 ) = 397778481.8 / 42081169
= 9.45 m/s^2 to 2sf
<span>Flashlight should be carried to help avoid a collision, when paddling a canoe at night.
There are some rules and skills for paddling a canoe. So, before paddling you should know everything about it. Canoeing is not easy as it looks and not everyone can paddle a canoe. A strong stroke is a fundamental rule of Canoeing.</span>
Answer:
Explanation:
Given
mass of balls 
angular velocity 
Length of Rod 
Tension in the Second half of rod
For First Part
1. True
2. C, 60 x 2 = 120N
3. A , 6 m/s^2 ; a = F/m = 180/30 = 6
4. A; F= ma > m = f/a
