Answer:
P₃ > P₁ > P₂
Explanation:
To rank pressure of the given situation
a) we know
Pressure at height h below
P = ρ g h
density of salt water, ρ = 1029 kg/m³
P₁ = 1029 x 10 x 0.2
P₁ = 2058 Pa
b) density of fresh water, ρ = 1000 kg/m³
P₂ = 1000 x 10 x 0.2
P₂ = 2000 Pa
c) density of mercury, ρ = 13593 kg/m³
P₃ = 13593 x 10 x 0.05
P₃ = 6796.5 Pa
Rank of Pressures from highest to lowest
P₃ > P₁ > P₂
Answer:
It will take 0.46 seconds to reach home plate by ball.
Explanation:
Answer:
The impression of the image on the retina lasts for about 1/16th of a second after the removal of the object. If a burning stick of incense is revolved at a rate of more than sixteen revolutions per second, we see a circle of red light due to persistence of vision.
Explanation:
Answer:
The natural frequency = 50 rad/s = 7.96 Hz
Damping ratio = 0.5
Explanation:
The natural frequency is calculated in this manner
w = √(k/m)
k = spring constant = 5 N/m
m = mass = 2 g = 0.002 kg
w = √(5/0.002) = 50 rad/s
w = 2πf
50 = 2πf
f = 50/(2π) = 7.96 Hz
Damping ratio = c/[2√(mk)] = 0.1/(2 × √(5 × 0.002)) = 0.5
Answer:
a) 360 kQ
b) 4.32 MJ
c) 1200 W-h
Explanation:
a) The definition of the current is.
having a count that 10 hours = 36.000 s
![Q = 36000*10 = 360.000 [Q]](https://tex.z-dn.net/?f=%20Q%20%3D%2036000%2A10%20%3D%20360.000%20%5BQ%5D%20)
b) The definition of the Energy in power terms is.
and the definition of power is:
![P = V*I = 12 * 10 = 120 [W]](https://tex.z-dn.net/?f=%20P%20%3D%20V%2AI%20%3D%2012%20%2A%2010%20%3D%20120%20%5BW%5D)
replacing in the energy formula.
solving the integral, have into account that t is in seconds.
![E=P*t=120*36000=4.320.000=4.32 [MJ]](https://tex.z-dn.net/?f=%20E%3DP%2At%3D120%2A36000%3D4.320.000%3D4.32%20%5BMJ%5D)
c) The energy in W-h, we can find it multiplying power by hours
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