Answer:
The mercury in the barometer rises by a height of 0.0764 m = 76.4 cm = 764 mm
Explanation:
The change in pressure is related to the density of fluid and height risen by the fluid through the relation
ΔP = ρgh
ΔP = change in pressure = P₂ - P₁ = 1.1 - 1.0 = 0.1 atm = 0.1 × 101325 Pa = 10132.5 Pa
ρ = density of the fluid = 13,534 kg/m³
g = acceleration due to gravity = 9.8 m/s²
h = height through which the mercury in barometer rises = ?
10132.5 = 13534 × 9.8 × h
h = (10132.5) ÷ (13534 × 9.8)
h = 0.0763948996 = 0.0764 m = 76.4 cm = 764 mm
Hope this Helps!!!
Answer:
The correct option is a , c
Explanation:
Generally the fringe spacing is mathematically defined as
Where y is the fringe spacing
m is the order of the fringe
is the wavelength
D is the distance between the slit and the screen
d is the distance between the slit
Now in order to increase the fringe spacing can do the following
- Increase the wavelength
- increase the distance from the slit to the screen
- Decrease the distance between the slit
The following action would increase the fringe spacing because the from the question these parameters are directly proportional to the fringe spacing
Answer:
ΔE = GMm/24R
Explanation:
centripetal acceleration a = V^2 / R = 2T/mr
T= kinetic energy
m= mass of satellite, r= radius of earth
= gravitational acceleration = GM / r^2
Now, solving for the kinetic energy:
T = GMm / 2r = -1/2 U,
where U is the potential energy
So the total energy is:
E = T+U = -GMm / 2r
Now we want to find the energy difference as r goes from one orbital radius to another:
ΔE = GMm/2 (1/R_1 - 1/R_2)
So in this case, R_1 is 3R (planet's radius + orbital altitude) and R_2 is 4R
ΔE = GMm/2R (1/3 - 1/4)
ΔE = GMm/24R
Answer:
sorry I dont now the answer bro i am so sorry xd ;'(
