Answer:
Maximum speed of the car is 17.37 m/s.
Explanation:
Given that,
Radius of the circular track, r = 79 m
The coefficient of friction,
To find,
The maximum speed of car.
Solution,
Let v is the maximum speed of the car at which it can safely travel. It can be calculated by balancing the centripetal force and the gravitational force acting on it as :
v = 17.37 m/s
So, the maximum speed of the car is 17.37 m/s.
This is a limitation of kinetic-molecular energy. Right?
Answer:
is the rock's speed.
Explanation:
Momentum is defined as motion possessed by the moving body's mass. Mathematically it a product of mas and velocity of the body.
Given : Mass of rock = m = 1.45 kg
Velocity of the rock = v
Momentum of the rock = P =
is the rock's speed.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The maximum emf is
The emf induced at t = 1.00 s is
The maximum rate of change of magnetic flux is
Explanation:
From the question we are told that
The number of turns is N = 44 turns
The length of the coil is
The width of the coil is
The magnetic field is
The angular speed is
Generally the induced emf is mathematically represented as
Where is the maximum induced emf and this is mathematically represented as
Where is the magnetic flux
N is the number of turns
A is the area of the coil which is mathematically evaluated as
Substituting values
substituting values into the equation for maximum induced emf
given that the time t = 1.0sec
substituting values into the equation for induced emf
The maximum induced emf can also be represented mathematically as
Where is the magnetic flux and is the maximum rate at which magnetic flux changes the value of the maximum rate of change of magnetic flux is