Answer:
The Solar System has plants? I assume you meant planets. If so, that is false
Explanation:
The answer here would be the first law of motion. An object in motion will stay in motion unless acted upon by another force.
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
Answer:
Mass=0.143 kg
Explanation:
From the Newton's second law of motion the force applied to an object is directly proportional to the acceleration produced and the acceleration is in the direction of the force.
F=ma where F is the force, m is the mass of the object and a i the acceleration.
m=F/a
=4.719N/33 m/s²
=0.143 kg
(NH4)2CO3(s) ⇄ 2NH3(g) + CO2(g) + H2O (g)
The effect that adding water (H2O) have in reaction above is that The concentration of the product would decrease, and the concentration of reactant would increase. (answer C)
<u><em>Explanation</em></u>
- If the concentration of one substance is changed, the equilibrium shift to minimize the effect of that change.
- H2O in reaction above is a product.
- Increase of water (H2O) concentration will led to the shift of equilibrium to the left ( reactant side) .The concentration of reactant increase as that of product decrease.
