Answer:
The three types of thermal expansions are Linear expansion , Superficial expansion and Cubical expansion
As these are distances created by moving in a straight line, using a trigonometric analysis can solve the missing single straight-line displacement. Looking at the 48m and 12m movements as legs of a triangle, obtaining the hypotenuse using the pythagorean theorem will yield us the correct answer.
This is shown below:
c^2 = 48^2 + 12^2
c = sqrt(2304 + 144)
c = sqrt(2448)
c = 49.48 m
To obtain the angle at which Anthony walks 49.48, we obtain the arc tangent of (12/48). This is shown below:
arc tan (12/48) =14.04 degrees.
Therefore, Anthony could have walked 49.48 m towards the S 14.04 W direction.
The answer is <span>Guardrails and protective equipment. </span><span>When hoisting a personnel platform, guardrails and protective equipment need not be engaged when they occupied platform is in a stationary position. </span>
I think this is the answer for the first line(Cooling ,Heating or mixing ) and for the second line is(broken down,cooled,mixed)
Answer:
a
The speed of the quarterback backward is 
b
Known are

Unknown

Explanation:
From the question we are told that
The mass of the quarterback is 
The mass of the ball is 
The speed of the ball is 
The law of momentum conservation can be mathematically represented as

Now at initial both ball and quarterback are at rest and the negative sign signify that the quarterback moved backwards after throwing the ball
So

=> 
substituting values

