Answer:
The volume of the bubble near the surface will be 9.47 m³
Explanation:
Given that,
Depth = 52.0 m
Volume = 1.50 m³
Temperature at bottom = 5.5°C
Temperature at the top = 18.5°C
We need to calculate the pressure at the depth 52.0 m
The pressure is
![P_{1}=P_{2}+\rho gh](https://tex.z-dn.net/?f=P_%7B1%7D%3DP_%7B2%7D%2B%5Crho%20gh)
Where,
= Pressure at the surface
= Pressure at the depth
Put the value into the formula
![P_{1}=101325+(1000\times9.8\times52.0)](https://tex.z-dn.net/?f=P_%7B1%7D%3D101325%2B%281000%5Ctimes9.8%5Ctimes52.0%29)
![P_{1}=610925\ N/m^2](https://tex.z-dn.net/?f=P_%7B1%7D%3D610925%5C%20N%2Fm%5E2)
We need to calculate the volume of the bubble just before it reaches the surface
Using equation of ideal gas
![PV=RT](https://tex.z-dn.net/?f=PV%3DRT)
![\dfrac{PV}{T}=constant](https://tex.z-dn.net/?f=%5Cdfrac%7BPV%7D%7BT%7D%3Dconstant)
Now, The equation of at bottom and top
![\dfrac{P_{1}V_{1}}{T_{1}}=\dfrac{P_{2}V_{2}}{T_{2}}](https://tex.z-dn.net/?f=%5Cdfrac%7BP_%7B1%7DV_%7B1%7D%7D%7BT_%7B1%7D%7D%3D%5Cdfrac%7BP_%7B2%7DV_%7B2%7D%7D%7BT_%7B2%7D%7D)
![V_{2}=\dfrac{P_{1}V_{1}T_{2}}{P_{2}T_{1}}](https://tex.z-dn.net/?f=V_%7B2%7D%3D%5Cdfrac%7BP_%7B1%7DV_%7B1%7DT_%7B2%7D%7D%7BP_%7B2%7DT_%7B1%7D%7D)
Put the value into the formula
![V_{2}=\dfrac{610925\times1.50\times(18.5+273)}{101325\times(5.5+273)}](https://tex.z-dn.net/?f=V_%7B2%7D%3D%5Cdfrac%7B610925%5Ctimes1.50%5Ctimes%2818.5%2B273%29%7D%7B101325%5Ctimes%285.5%2B273%29%7D)
![V=9.47\ m^3](https://tex.z-dn.net/?f=V%3D9.47%5C%20m%5E3)
Hence, The volume of the bubble near the surface will be 9.47 m³
Answer:
induced emf = 28.65 mV
Explanation:
given data
diameter = 7.3 cm
magnetic field = 0.61
time period = 0.13 s
to find out
magnitude of the induced emf
solution
we know radius is diameter / 2
radius = 7.3 / 2
radius = 3.65 m
so induced emf is dπ/dt = Adb/dt
induced emf = A × ΔB / Δt
induced emf = πr² × ΔB / Δt
induced emf = π (0..65)² × ( 0.61 - (-0.28)) / 0.13
induced emf = 0.0286538 V
so induced emf = 28.65 mV
Answer: Meteor showers occur when the earth in its orbit around the Sun passes through debris left over from the destruction of comets.
Explanation:A meteor is a particle broken off an asteroid or comet orbiting the Sun, it burns up as it enters the Earth's atmosphere, creating the effect called shooting star. Cosmic debris of meteor is known as meteoroids. These meteoroids, entering Earth's atmosphere, at extremely high speeds on parallel trajectories is an event known as meteor shower.
Answer:187500m
Explanation:
frequency=1600kHz
Velocity=3x10^8 m/s
Wavelength=velocity ➗ frequency
Wavelength=(3x10^8) ➗ 1600
Wavelength=187500m
At condition 1:
I = mL^2
At condition 2:
I’ = m(2L)^2 = 4mL^2 = 4I