Answer:
Correct answer is option C (Brahe and Kepler.)
Explanation:
Copernican model
Copernican model is also known as heliocentric model. According to Copernican model planets rotate around the Sun in an orbit, and earth is orbited by the Moon. Also sun is stationary and it lies at the center of the universe and stars also do not move.
Brahe supported the Copernican model but he rejected the idea that earth moves.
Kepler's also supported Copernican model and In his book "the Mysterium Cosmographicum" Kepler appreciated Copernican model. like Kepler also believed in heliocentric model not in geocentric one.
The force needed to overcome sliding friction is more than the force needed to overcome rolling friction or static or even fluid
Define electric potential and electric potential energy.
Describe the relationship between potential difference and electrical potential energy.
Explain electron volt and its usage in submicroscopic process.
Determine electric potential energy given potential difference and amount of charge.
Answer:
Part a)
When rotated about the mid point
Part b)
When rotated about its one end
Explanation:
As we know that the angular acceleration of the rod is rate of change in angular speed
so we will have
Part a)
When rotated about the mid point
now torque is given as
Part b)
When rotated about its one end
now torque is given as