Answer: The correct answer is The aplastic potential energy of the spring will be two times greater than the gravitational potential energy of the object.
Explanation: The formula for Gravitational potential energy is= mgh where
m= mass
g= 9.8
h= height
On the other hand the formula for elastic potential energy is (1/2)KX^2
Where K is the spring. By changing the values of H and X, we will see elastic potential energy will remain more.
Answer:
0.0468 g.
Explanation:
- The decay of radioactive elements obeys first-order kinetics.
- For a first-order reaction: k = ln2/(t1/2) = 0.693/(t1/2).
Where, k is the rate constant of the reaction.
t1/2 is the half-life time of the reaction (t1/2 = 1620 years).
∴ k = ln2/(t1/2) = 0.693/(1620 years) = 4.28 x 10⁻⁴ year⁻¹.
- For first-order reaction: <em>kt = lna/(a-x).</em>
where, k is the rate constant of the reaction (k = 4.28 x 10⁻⁴ year⁻¹).
t is the time of the reaction (t = t1/2 x 8 = 1620 years x 8 = 12960 year).
a is the initial concentration (a = 12.0 g).
(a-x) is the remaining concentration.
∴ kt = lna/(a-x)
(4.28 x 10⁻⁴ year⁻¹)(12960 year) = ln(12)/(a-x).
5.54688 = ln(12)/(a-x).
Taking e for the both sides:
256.34 = (12)/(a-x).
<em>∴ (a-x) = 12/256.34 = 0.0468 g.</em>
1. V= 161
2. V = 37.3
<h3 /><h3>Further explanation </h3>
Charles's Law states that
<em>When the gas pressure is kept constant, the gas volume is proportional to the temperature </em>
1.
2.
Answer:
B
Explanation:
I had tried my best to get this answer and I had gotten B
sorry if it was not the right answer but I would recommend B
Answer: 3.54
Explanation:
You're forgetting to divide by 3 for the 3 moles of potassium that are in potassium phosphate.
Potassium Phosphate= K3PO4
