Answer:
T=21.7 min
Explanation:
The volume of one mole of gas at STP is
22.4 L
10.0 L
then has
n'=10.0/22.4 moles
the total energy released is then
Et= (10.0/22.4)* 286 kJ
Et=127.678 KJ
Power*time = energy, so time = energy/power =
Power=100W
Power=100 J/s
T= 127.6785kJ/100J/s = 1277 sec
T=1276.78sec/60min=21.3 min
Answer:
The speed of the wave is
Explanation:
Given that,
Frequency = f
String length = l
We need to drive a formula of the speed of the wave
Using formula of fundamental frequency
We know that,
Where, v = speed of wave
= wavelength of the wave
f = frequency
The speed of the wave is
Hence, The speed of the wave is
Part 1: V = gt = 10(11) = 110 m/s
Part 2: Vavg = V/2 = 110/2 = 55 m/s
Part 3: d = Vavg(t) = 55(11) = 605 m
Density: 1.9 g/cm3
density = mass/volume
d = 5.7/3
d = 1.9