Answer:
The essential characteristics of an object in equilibrium is acceleration of the object must be zero.
Explanation:
Equilibrium: An object acted upon by several forces is said to be in equilibrium if it does no it moves or rotate. Equilibrium can be defined as the state of stability of an object.
Condition for equilibrium
(i) The resultant force acting on the object must me equal to zero.
(ii) The sum of moment acting on the object must be equal to zero.
But.
F = ma..................... Equation 1
Where F = net force , m = mass, a = acceleration.
from the equation above,
For F = 0 N, a must be equal to zero.
<em>From the above, the essential characteristics of an object in equilibrium is acceleration must be zero</em>
Answer:
Single Compound
Explanation:
A synthesis reaction takes two or more reactants and reacts chemically to turn them all into one substance.
An example of a synthesis reaction is the reaction that takes place between sodium (Na) and chlorine (Cl) to create table salt.
Answer:
1779299.7m
Explanation:
From formulas in acoustic sound, we know that sound intensity is inversely proportional to the square of the distance away.
Thus;
I2/I1 = r2²/r 1²
So,
∆L = 10 log (I2/I1)
Where ∆L is the intensity of music and r1 and r2 are distances away.
∆L=10log 10(r1²/r2²)
∆L=10log 10(r1/r2)²
∆L= - 20log 10(r1/r2)
r2 = r1•10^(-∆L/20)
From the question,
∆L = 116 Db
r1 = 2.82m
Thus,
r2 = 2.82 x 10^(116/20)
r2 = 2.82 x 630957.34 = 1779299.7m
<h2>Hey there! </h2>
<h2>Your answers are:</h2>
<h3>1.ans) 9.843 ft</h3>
<h3>2.ans) 30660000 hours </h3>
<h3>3.ans) 50 m/s</h3>
<h3>4.ans) 0.0543 mile</h3>
<h2>Hope it help you </h2>
