To solve this problem we will apply the concepts related to the potential, defined from the Coulomb laws for which it is defined as the product between the Coulomb constant and the load, over the distance that separates the two objects. Mathematically this is
k = Coulomb's constant
q = Charge
r = Distance between them
Replacing,
Therefore the potential at the surface of the raindrop is 135 V
Answer:
Absolute pressure of the oil will be 102822.8 Pa
Explanation:
We have given height h = 31 cm = 0.31 m
Acceleration due to gravity
Specific gravity of oil = 0.600
So density of oil
We know that absolute pressure is given by , here
So absolute pressure will be equal to
So absolute pressure of the oil will be 102822.8 Pa
a) 3.14 m/s
b)
c) 59.4 N
Explanation:
a)
The relationship between angular velocity and linear velocity for an object in circular motion is given by:
where
is the angular velocity
v is the linear velocity
r is the distance between the object and the axis of rotation
For the ladybug in this problem, we have:
r = 1 m (distance)
(angular velocity)
So, its linear velocity is
b)
The centripetal acceleration of an object in circular motion is given by the equation
where
v is the linear velocity
r is the distance between the object and the axis of rotation
The centripetal acceleration represents the radial acceleration of the object.
For the ladybug in this problem, we have:
v = 3.14 m/s (linear velocity)
r = 1 m (distance)
So, the centripetal acceleration is
c)
The centripetal force for an object in circular motion is given by
where
m is the mass of the object
a is the centripetal acceleration of the object
The centripetal force is the radial inward force that keeps the object in circular motion.
For the ladybug in this problem we have
m = 6.0 kg (mass)
(centripetal acceleration)
So, the centripetal force is