A conductor contains electrons that are bound so weakly to their atoms
that they can be ripped away with a small voltage, and sent scurrying in
the direction of the higher potential.
<h3>
Answer:</h3>

<h3>
General Formulas and Concepts:</h3>
<u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Physics</u>
<u>Forces</u>
SI Unit: Newtons N
Free Body Diagrams
Gravitational Force: 
- m is mass (in kg)
- g is Earth's gravity (<em>9.8 m/s²</em>)
Normal Force: 
Newton's Law of Motions
- Newton's 1st Law of Motion: An object at rest remains at rest and an object in motion stays in motion
- Newton's 2nd Law of Motion: F = ma (Force is equal to [constant] mass times acceleration)
- Newton's 3rd Law of Motion: For every action, there is an equal and opposite reaction
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
1 kg book at <em>rest</em>
<u>Step 2: FBD</u>
<em>See Attachment</em>
<em>Draw a free body diagram to label the forces acting upon the book. We see that we would have gravitational force from Earth pointing downwards and normal force from the surface of the desk pointing upwards.</em>
<em>Since the book is not moving, we know that ∑F = 0 (sum of forces equal to 0).</em>
<u>Step 4: Find Normal Force</u>
- Define Forces [Newton's Law of Motions]:

- [Newton's Law of Motions] Substitute in forces:

- [Newton's Law of Motions] [Addition Property of Equality] Isolate
: 
- [Newton's Law of Motions] Substitute in
: 
- [Newton's Law of Motions] Rewrite:

- [Newton's Law of Motions] Substitute in variables:

- [Newton's Law of Motions] Multiply:

Answer:
12.5 m.
Explanation:
Speed: This can be defined as the rate of change of distance. The S.I unit of speed is m/s. Mathematically it can be expressed as,
Speed = distance/time
S = d/t......................... Equation 1
d = S×t ...................... Equation 2.
Where S = speed of the car, d = distance, t = time taken to shut the eye during sneezing
Given: S = 90 km/h, t = 0.50 s.
Conversion: 90 km/h ⇒ m/s = 90(1000/3600) = 25 m/s.
S = 25 m/s.
Substitute into equation 2.
d = 25×0.50
d = 12.5 m.
Hence the car will move 12.5 m during that time
Answer:
Zero
Explanation:
Electric flux is defined as the number of electric field lines which passes through any area in the direction of area vector.
The formula for the electric flux is given by

Here, E is the strength of electric field and dS be the area vector.
It is a scalar quantity.
According to the Gauss's theorem, the electric flux passing through any surface is equal to the
times the total charge enclosed through the surface.
Here, the charge enclose is zero, so the total flux is also zero.
They are inversely proportional to the square of the distance.
Explanation:
The magnitude of the gravitational force between two objects is given by

where G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between the two objects.
The magnitude of the electrical force between two objects is given by

where k is the Coulomb's constant, q1 and q2 are the charges of the two objects, and r is the distance between the two objects.
In both cases, we see that the magnitude of the force is iinversely proportional to the square of the distance,
, so the correct option is
They are inversely proportional to the square of the distance.