As a roller coaster car crosses the top of a 50-m-diameter loop-the-loop, its apparent weight is the same as its true weight.
1 answer:
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Answer:
The current is 0.951 A
Solution:
As per the question:
Capacitance of the capacitor, C =
Resistance of the circuit, R = 14.0
Voltage of the battery, V = 10.0 V
Now, when the charge become one-fourth of its initial value, the amount of current flowing is given by:
(1)
where
q' =
Now,
The current is given by:
(2)
Also,
Now, using the value of I = 0.714 A
Answer:
The gauge pressure as calculated is 5862.36 Pa
Solution:
As per the question:
Radius, r = 1 cm = 0.01 m
Length, l = 60 cm = 0.6 m
Velocity of discharge of fluid from the mouth, v = 1.5 m/s
Now,
By using the continuity equation:
Av = A'v' (1)
where
A = Area of the mouth
A' = Area of the tube
v' = Velocity of the fluid inside the stomach
Since, the question assumes the stomach, mouth and esophagus as continuous vertical tube, then:
A = A'
Thus
From eqn (1):
v = v' = 1.5 m/s
Now,
With the help of Bernoulli's equation:
where
h - h' = l = 60 am = 0.6 m
P = Pressure at mouth = 1 atm =
g = acceleration due to gravity
Density of water,
P' = Pressure inside the stomach
P' - P = Gauge Pressure