Answer:
n = 223 revolutions
Explanation:
It is given that,
The angular acceleration of a helicopter blade,
Initial speed of the helicopter blade,
The final speed of the blade,
We need to find the number of revolutions. Firstly we will find the angle turned by the blade. Let the angle is . So,
Let there are n number of revolutions made by the blade. So,
or
n = 223 rev
So, there are 223 revolutions.
Explanation:
The sum of the voltages of the components connected in a series circuit is equal to the voltage across the battery.
From Ohm's law () and in a series circuit, the amount of current flowing through the components is the same for all. So we can write as
Answer:
linear acceleration
angular acceleration
Explanation:
As we know that the force due to tension force is upwards while weight of the disc is downwards
so we will have
also we have
now we have
now we have
so we have
linear acceleration
angular acceleration
Two waves have the same direction of displacement.