For this problem, let's use the Planck's equation which is written below:
E = hv
where
E is the energy
h is Planck's constant equal to 6.626×10⁻³⁴ J·s
v is frequency
Solving for E,
E = (6.626×10⁻³⁴ J·s)(7.14×10¹⁴ s⁻¹)
<em>E = 4.73×10⁻¹⁹ J</em>
Answer:
The new pressure of a gas initially at 575 mmhg and 12500ml and the volume changed to 15L is 479. 16 mmHg
Explanation:
Boyle's law states that the pressure of a given quantity of gas varies inversely with its volumes at constant temperature. It is represented as;
P V = K
P1 V1 = P2 V2
Where;
P1 = Initial pressure = 575 mmHg
P2 = Final pressure?
V1 = Initial volume = 12500ml = 12500÷ 1000 = 12.5 Liters
V2 = Final pressure = 15 Liters
Calculations :
P2 = P1 V1 ÷ V2
P2 = 575 × 12.5 ÷ 15
P2 = 7187 . 5 ÷ 15
P2 = 479. 16 mmHg
Therefore, the new pressure is 479. 16 mmHg
Answer : A. Location A
The seats in location A will experience sound waves with the greatest intensity , because it is closer to the stage .
Answer:
Exactly 18.228749999999973 grams :)
I recommend rounding to 1 d.p